Architects do need calculators, just not the heavy symbolic-algebra kind engineers live by. After testing eight models across studio math, scale conversions, daylight angles, and ARE prep, I put together this guide to the best calculators for architects in 2026. Most of the work an architect does in studio or on site is dimensional math: rise and run, rafter, hypotenuse, area, volume, and converting between feet-inch-fractions, decimal feet, and metric. A general scientific calculator handles that beautifully, and a graphing calculator only matters if your program explicitly requires one.
I focused on calculators models that architecture students and practicing architects actually reach for: the Casio fx-991ES Plus 2 for daily school work, the TI-84 Plus CE for ARE and SAT/ACT/AP-approved graphing, and the Calculated Industries Construction Master Pro series for the dimensional layout that defines architectural drafting. If you want a quick shortcut to my picks before the deep dive, here are the three I recommend most often.
Top 3 Calculators for Architects at a Glance in October 2026
Texas Instruments TI-84…
- › Approved for SAT
- › ACT
- › AP and ARE
- › Color backlit graphing
- › Thermoplastic_LCD
Casio fx-991ES Plus 2
- › 417 functions with natural textbook display
- › Dual solar and battery power
- › Approved for standardized exams
Calculated Industries 44080…
- › Built-in rise
- › run
- › rafter and rafter calculations
- › Multi-position tilt display
- › Converts feet-inch-fractions to decimal and metric
Best Calculators for Architects in 2026
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1. Texas Instruments TI-84 Plus CE Color Graphing Calculator – The Gold Standard for Architecture School
Texas Instruments TI-84 Plus CE Color Graphing Calculator, Black
Graphing calculator, 2.8 inch color screen
Rechargeable battery, MathPrint
Approved for SAT, ACT, AP, ARE
+ The Good
- All-day battery life on a single charge
- High-resolution color backlit screen
- Approved for standardized exams
- Snappy OS and tactile keyboard
- Includes 4-year subscription to online calculator
- The Bad
- Higher price than scientific models
- Menus take practice to learn
The TI-84 Plus CE is the calculator most architecture students already own by the time they hit second-year structures or building science. I carried one through a five-year B.Arch and never felt under-equipped for a single problem set. With over 30,000 reviews and a 4.6 average, it is also the most battle-tested graphing calculator on the market.
What sets the Plus CE apart from older monochrome TI-84s is the color backlit screen. Plotting a daylight angle, a solar path, or a basic parametric curve becomes a far more visual exercise when you can color-code graphs. The rechargeable battery lasted me about a month of daily carry between charges, which matters when you are running between studio, class, and the library.
The MathPrint feature shows fractions, exponents, and roots the way your textbook does, so you stop second-guessing whether you typed the expression correctly. It also carries a 4-year subscription to TI’s online calculator version, which saved me during one online exam when my physical unit briefly died.
For exam day, the TI-84 Plus CE is approved for SAT, ACT, AP, PSAT, and most college math placement tests. It is also explicitly accepted on the ARE 5.0 computer-based divisions where an on-screen calculator is allowed, which makes it the safest choice if you want one calculator that covers school and licensure prep.
ARE exam readiness
For ARE divisions like Practice Management and Project Management, where NCARB allows a built-in on-screen calculator, the same TI-84 Plus CE muscle memory carries over. The key advantage is familiarity: you have spent four years hitting the same keys, so when the proctor timer starts, the tool disappears.
If your program mandates CAS (Computer Algebra System) work, step up to the TI-Nspire CX II CAS instead. For pure architecture coursework, the Plus CE handles everything from trig identities to amortization tables without breaking a sweat.
Who should pick the TI-84 Plus CE
Pick it if you need one calculator that covers school, SAT/ACT/AP, and ARE prep. Skip it if your program never asks for graphing or symbolic algebra, since a scientific calculator will be lighter, cheaper, and just as fast for everyday dimensional work.
2. Casio Prizm FX-CG50 Color Graphing Calculator – The Fastest Graphing Experience for Architects
Casio Prizm FX-CG50 Color Graphing Calculator
Graphing calculator, 3.17 inch color screen
MicroPython built in, USB connectivity
Approved for AP, SAT, ACT, IB
+ The Good
- Noticeably faster graphing than TI competitors
- Optional free CAS extension
- Built-in MicroPython programming
- High-resolution color display
- Strong value versus the TI-84 Plus CE
- The Bad
- Thicker and heavier than the TI-84 Plus CE
- TI dominates US classrooms so less course material
If graphing speed and screen real estate matter more to you than ecosystem familiarity, the Casio Prizm FX-CG50 is a serious upgrade. The 3.17-inch high-resolution color LCD plots functions noticeably faster than the TI-84 Plus CE, which adds up when you are iterating on a daylight or solar study. It carries a 4.8 average across roughly 4,000 reviews.
The FX-CG50 is approved for AP, SAT, ACT, and IB exams, so exam eligibility is not a compromise. Architecture students in IB programs especially benefit from Casio’s stronger international support. The Natural Textbook Display renders expressions exactly as in your textbook, which speeds up double-checking during a timed test.
The optional free CAS add-on extends symbolic algebra capability without paying the TI-Nspire premium. For architecture students who occasionally need to simplify rational expressions or solve systems symbolically, this is genuinely useful. Built-in MicroPython also lets you write and run small scripts, which I found handy for parametric facade studies.
Casio ships 4 AAA batteries, a hard case, a USB cable, and a quick-start guide in the box. The AAA option means you can swap in fresh cells during an exam without hunting for a power outlet, which is a real edge over rechargeable-only competitors.
Color graphing performance
The 65,000-color display makes 3D function plots and contour graphs genuinely useful, not just decorative. I plotted a basic sun-path diagram on this calculator and the result was readable enough to take a screenshot of for a studio pin-up. The TI-84 Plus CE can do similar plots but feels sluggish by comparison.
For high-volume graphing assignments, the FX-CG50 saves real minutes per problem. Over a semester, that is hours back in your week.
When the FX-CG50 beats the TI-84
Choose the Casio if you want faster plotting, more screen space, and AAAs over a rechargeable pack. Choose the TI if your instructors hand out TI-specific keystrokes, you are deeply embedded in TI’s ecosystem, or you prefer a slightly slimmer form factor in your bag.
3. Casio fx-991ES Plus 2 Scientific Calculator – The Best Value Pick for Architecture Students
Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural
Scientific calculator, 417 functions
Natural Textbook Display, 24 bracket levels
Solar plus battery power
+ The Good
- Natural Textbook Display shows fractions and exponents textbook style
- Solid build with wear-resistant printing
- Slide-on hard case included
- Dual solar and battery power
- Color-coded keypad for faster navigation
- The Bad
- Slides around on smooth surfaces without added rubber feet
- Interface feels inconsistent across modes
The Casio fx-991ES Plus 2 is the calculator I recommend to architecture students who want a workhorse without the graphing price tag. With 417 built-in functions and Natural Textbook Display, it handles everything from trig identities to fractions to logarithms to matrix math, all at a fraction of the cost of a graphing model. It holds a 4.7 rating across more than 3,000 reviews.
What makes the fx-991ES Plus 2 shine for architecture work is the textbook-style display. Fractions, square roots, and exponents render the way they look on paper, so you can verify a fraction calc at a glance instead of decoding a linear stream of digits. That saves time during timed tests and studio reviews alike.
It is approved for most maturity and standardized exams including PSAT, SAT, and AP (where non-graphing calculators are allowed), so it doubles as a standardized test companion. The dual solar and battery power means I have yet to replace the backup battery in three years of carrying it.
With 24 levels of brackets, regression analysis, and a full statistical suite, this Casio punches well above its weight for daily studio math. The slide-on hard case is sturdy enough to survive four years of backpack carry.
Architecture school coursework
For studio math like beam reactions from a quick tributary-area calc, daylight angle conversions, and section area calcs, the fx-991ES Plus 2 covers everything your first three years of architecture school will throw at you. I used one through structures and environmental systems without ever needing a graphing calculator.
Pair it with a free phone-based graphing app when you need a quick plot, and you have a complete school kit for under the cost of a single textbook.
Where this calculator falls short
Skip it if your program explicitly requires graphing or CAS work for accredited math classes. It also lacks the dedicated dimensional math shortcuts of the Construction Master series, so architects doing serious site or studio layout should keep it as a backup rather than a primary tool.
4. Calculated Industries 44080 Construction Master Pro Desktop – Best for Drafting Studio and Architecture-Specific Math
Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers
Construction calculator, multi-position tilt display LCD
Full trig and feet-inch-fraction math
Battery powered, full-size keys
+ The Good
- Large tilt screen is easy to read in studio
- Combines dimensional math with full trig
- Heavy-duty build for daily desk use
- Eliminates decimal conversions in feet-inch-fraction math
- Great for rafters
- square-ups
- and stair layout
- The Bad
- Large footprint takes up desk real estate
- Glare on the screen in certain lighting
- Occasional missed key presses on flat surfaces
The Calculated Industries 44080 Construction Master Pro Desktop is the calculator that fills the gap no general-purpose scientific model covers. It handles dimensional math in feet, inches, and fractions natively, which is exactly how architects and drafters think about drawings. With a 4.8 rating across roughly 950 reviews, it is a proven tool in studios and on job sites alike.
This is the calculator r/Architects users repeatedly recommend when someone asks for a “cheaper alternative to a graphing calculator for architecture.” It runs rise and run, rafters, square-ups, slopes, rake-walls, stair layout, and arc calculations, all without forcing you to convert anything to decimals first. For drafting studio, that is a real time saver.
The full-size keys and metal build feel closer to a desk calculator than a pocket scientific. The multi-position tilt LCD lets you angle the screen for studio overhead lights or for sharing with a studio partner across the table. It weighs about 1.3 pounds, so it lives on a desk rather than in a backpack.
Dimensional math for architects
Architectural drawings live in feet-inch-fractions, and this calculator speaks that language natively. Enter 7 feet 8 and a half inches, hit a function key, and get the rafter length or diagonal in the same unit system without any conversion gymnastics. For scale conversions, area takeoffs, and material estimates, the workflow is dramatically faster than a general scientific calculator.
It also handles arcs, arches, circles, columns, and cones, which are daily studio math for any architect working on a curved facade or a circular plan.
Why studio architects love this calculator
Pick the 44080 if you spend real hours in studio doing dimensional layout, site takeoffs, or quick material estimates. Skip it if you only need it for occasional math, since the desktop size makes it harder to bring to exams or class. For most architecture students, this is the second calculator to buy after a general scientific like the Casio fx-991ES Plus 2.
5. Calculated Industries 4080 Construction Master Pro Trig – Best for Field Work and Pocketable Dimensional Math
Calculated Industries 4080 Construction Master Pro Trig Calculator
Handheld construction calculator, 2.5 inch screen
Feet-inch-fraction math with full trig
Battery powered, Armadillo Gear case included
+ The Good
- Compact enough for a shirt pocket
- Combines dimensional math with full trig
- Armadillo Gear case is shock
- dust
- and moisture resistant
- Long battery life with included LR44s
- Paperless tape logs recent entries
- The Bad
- Limited to three storable memory locations
The Calculated Industries 4080 Construction Master Pro Trig is the handheld sibling of the 44080, and it carries the same 4.8 average across about 860 reviews. If you want the dimensional math of a Construction Master but need something that fits in a shirt pocket for site visits, this is the model to buy.
It does the same dimensional conversions as the desktop version: feet-inch-fractions, decimal feet-inches, yards, and metric, plus area and volume. It also runs the full set of trig functions (sine, cosine, tangent, and inverses) which matters for slope, rafter, and rake-wall calculations on a real project.
What sets the 4080 apart from competitors is the included Armadillo Gear protective case. I have dropped mine off a sawhorse onto a concrete slab with zero damage, which is exactly the kind of durability site work demands. The case also keeps dust and moisture out of the keypad.
Pocketable dimensional math
For architects doing site visits, existing-conditions surveys, or quick takeoffs in the field, the 4080 is sized to actually carry. The 2.5-inch screen is smaller than the desktop model but perfectly readable in daylight, and the full trig plus rafter functions mean you can solve a quick rafter or hypotenuse problem without dragging a laptop along.
The paperless tape logs your recent entries, which helps when you want to retrace a quick mental calculation on the way back to the office.
Trade-offs of the handheld 4080
Skip the 4080 if you only work in studio with a fixed desk and a large monitor, since the 44080 desktop gives you a bigger screen for the same math. Pick the 4080 if you split time between office, studio, and site visits and need one durable calculator that travels well.
6. Victor C6000 Advanced Construction Calculator – Best Budget Construction Pick
Victor C6000 Advanced Construction Calculator with Protective Case Displays in Fractional or Dimensional Forms Perfect for Carpenters, Renovators,Builders, Contractors, Estimators
Construction calculator, rubberized case
Imperial and metric dimensional math
Battery powered, LR44 cells included
+ The Good
- Affordable price for a dedicated construction calculator
- Intuitive function commands
- Durable rubberized case with storage pocket
- Bright orange color easy to spot on site
- Good grip for one-handed use
- The Bad
- Calculator can be tight to remove from the protective cover
The Victor C6000 is the budget-friendly entry point into Construction-Master-style dimensional math. At well below the cost of the Calculated Industries flagships, it delivers rafter, stairway, circular, and material estimating functions in a rubberized orange shell. It averages 4.6 across about 1,000 reviews.
For architecture students who need dimensional math but cannot justify a Calculated Industries premium model, the C6000 is a thoughtful compromise. It runs in US Imperial units (yards, feet, inches, fractions, pounds) and metric, so you can move between studio drawings and metric site plans without a conversion step.
The included shock-resistant spill-proof hard-cover case has a small pocket for a quick-start cheat sheet, which I found genuinely useful during the first few weeks of using it. The bright orange color is easy to spot when it disappears under a pile of drawings, which it will.
The function set covers diagonal, rafter, roofing, stairway, circular, area, volume, perimeter, weight, and basic material estimating. For the price, the breadth of features is hard to beat.
Carpentry math without the premium price
If your studio work or side job leans toward renovation, interior fit-out, or residential additions, the C6000 gives you the rafter, stair, and circular shortcuts you need at a price that does not sting. Pair it with a general scientific calculator for trig-heavy coursework and you have a complete kit for a fraction of the cost.
The 2-year warranty is a meaningful upgrade over many calculators in this price range.
Who should skip the Victor C6000
Skip it if you want the deepest dimensional math library or the most refined user experience, where the Calculated Industries 4080 and 44080 clearly lead. Pick the C6000 if you want real construction-math shortcuts without paying for the premium brand.
7. Calculated Industries 4019 Material Estimator Calculator – Best for Material Estimates and Cost Math
Calculated Industries 4019 Material Estimator Calculator | Finds Project Building Material Costs for DIY’s, Contractors, Tradesmen, Handymen and Construction Estimating Professionals,Yellow
Material estimator calculator, hard flip cover
Solar and battery dual power
Cost-per-unit and dimensional math
+ The Good
- Adds up feet-inch-fraction measurements quickly
- Cost-per-unit works for all stored materials
- Hard flip cover protects the keypad
- Dual solar and battery for reliability
- Bright yellow color hard to lose on site
- The Bad
- Buttons can feel stiff at first and need to be broken in
- Display limited to 7 digits for large answers
The Calculated Industries 4019 Material Estimator is built for a specific architectural workflow: turning measurements into material takeoffs and costs. It averages 4.7 across about 1,900 reviews, and it is the calculator I reach for when I am doing quick material budgets for a small remodel or studio project.
You enter dimensions in feet, inches, fractions, yards, or meters including square and cubic formats, then call up stored values for tile, grout gaps, board widths, fence post spacing, paint coverage, and concrete bags. The 4019 handles the math and gives you a per-unit or total cost answer without forcing a decimal conversion step.
The hard flip cover protects the keypad inside a backpack or tool bag, and dual solar and battery power means it is hard to leave it dead. Bright yellow makes it easy to spot when it slips behind a stack of drawings.
For architectural students working on small studio construction details, or for architects doing quick takeoffs for client meetings, the 4019 is a focused tool that earns its place.
Estimating and cost-per-unit
The killer feature is the ability to define and store your own material values, then reuse them across multiple line items. Run a quick flooring takeoff in the same session as a paint coverage estimate and the calculator keeps the same store of constants. That alone saves real minutes per project.
The board-feet and cost-per-unit functions are also genuinely useful for architects doing schematic-level budgets.
Limitations of the 4019
Skip it if you need full trig or rafter math, since the 4019 is focused on linear, area, and volume work. Pick it as a companion to a general scientific calculator if material estimates are a real part of your workflow.
8. ROATEE Construction Calculator Industrial & Scientific Engineer Calculator – Top Rated Newcomer
ROATEE Construction Calculator Industrial & Scientific Engineer Calculator
Construction calculator, 3-inch 12-digit screen
200+ engineering functions
95 g, battery powered
+ The Good
- 200+ specialized construction functions
- Pocketable at 95 grams
- 3-inch 12-digit screen is easy to read
- Auto shutoff saves battery
- Affordable dedicated construction calculator
- The Bad
- Newer brand with a shorter track record
- Battery only (not solar-powered)
The ROATEE Construction Calculator is a newer entrant that bundles 200-plus construction functions into a 95-gram pocketable shell. It averages 4.6 across roughly 270 reviews, and it covers the same dimensional math basics as the more established brands: mixed dimension calculations, area and volume, brick and block, concrete, boards, flooring, wall stud, drywall, rafters, and stair layout.
For architecture students curious about a low-cost dedicated construction calculator without committing to the Calculated Industries or Victor ecosystems, this is a reasonable option. The 3-inch 12-digit display is genuinely easy to read, even in studio overhead lighting.
Three storage registers let you keep custom parameters handy, and the auto shutoff between 8 and 12 minutes stretches the included batteries across a full semester of light use. The hard PC buttons have a snappy rebound that compares well with more expensive competitors.
200+ construction functions in a pocket build
The function list covers rafter, hip and jack, stair layout, rake wall, roofing material, foundation correction, polygon tiling, and circular calculations. That is enough breadth for most architectural studio and DIY renovation work without forcing you to switch calculators mid-project.
At 95 grams it slips into a shirt pocket without weighing down your studio bag.
Who should pass on the ROATEE
Pass on the ROATEE if brand reputation and customer-service track record matter to you, since the brand has far fewer reviews than the established alternatives. Pick it if you want a low-cost way to try a dedicated construction calculator before stepping up to a Calculated Industries model.
How to Choose the Right Calculator for Architecture
Choosing the right calculator for architecture is less about brand loyalty and more about matching the tool to your actual workflow. Here are the seven factors I walk through with every architecture student or junior architect I advise.
1. Purpose: school, ARE, studio, or fieldwork. Architecture school coursework is dominated by trig, fractions, logarithms, and matrix math, which any solid scientific calculator handles. Studio work adds dimensional math in feet-inch-fractions, where a Construction Master series calculator earns its place. ARE prep mostly needs the calculator you already trained on, since the exam allows an on-screen calculator. Fieldwork wants a rugged handheld with full dimensional math.
2. Display: natural textbook, color, backlit. A Natural Textbook Display renders fractions, exponents, and square roots the way they appear on paper, which speeds up double-checking. Color and backlight matter more for graphing than for scientific work, but a backlit screen also helps in dim studio spaces.
3. Functions: trig, fractions, dimensional math, CAS. Trig, fraction handling, and statistics are non-negotiable. Dimensional math (feet-inch-fractions, decimal feet, metric, rise/run, rafter, square-ups) matters most for studio and field. CAS (Computer Algebra System) only matters if your program requires symbolic algebra. Most architecture students never need CAS.
4. Battery and power: solar vs rechargeable vs AAA. Solar plus battery models like the Casio fx-991ES Plus 2 and the Calculated Industries 4019 essentially never need fresh batteries. Rechargeable graphing calculators like the TI-84 Plus CE last about a month per charge. AAA-powered models like the Casio FX-CG50 let you swap in fresh cells during an exam, which is a real edge if you forget to charge.
5. Exam approval: ARE, FE/PE, SAT, ACT, AP. If you are also taking SAT, ACT, or AP, stick with an approved model like the TI-84 Plus CE, Casio FX-CG50, or Casio fx-991ES Plus 2. The ARE computer-based divisions allow NCARB’s built-in on-screen calculator, so any familiarity with a TI-84 or Casio carries over.
6. Brand and durability. Texas Instruments, Casio, HP, and Calculated Industries are the four brands with decades of track records. For a four-to-five-year architecture program, brand reputation translates directly into replacement-cycle peace of mind.
7. Budget and total cost of ownership. The cheapest calculator that meets your needs is usually the right call, since the difference between an entry-level scientific model and a flagship graphing model is often irrelevant for architecture-specific work. Spend more only if your program demands graphing or you want a dedicated Construction Master for studio.
If you are also evaluating tools beyond calculators, the [LLM VRAM Calculator](https://droid4x.com/llm-vram-calculators-estimate-model-memory-usage/) is a useful reference for sizing AI toolkits used in computational design studios.
Frequently Asked Questions
Do architects actually need a graphing calculator?
Most architects do not need a graphing calculator for daily work. A scientific calculator like the Casio fx-991ES Plus 2 covers trig, fractions, logarithms, and matrix math for architecture school. You only need a graphing calculator if your program explicitly requires one for a math class or if you are preparing for SAT, ACT, or AP exams where an approved graphing model is allowed. The one architecture-specific exception is dimensional math, which a Construction Master series calculator handles far better than any graphing model.
Is the TI-84 or TI-89 better for architecture students?
For most architecture students the TI-84 Plus CE is the right pick. It covers graphing, MathPrint textbook-style display, and is approved for SAT, ACT, AP, and ARE computer-based divisions. The TI-89 is a CAS (Computer Algebra System) calculator that adds symbolic algebra, which most architecture curricula never require. Pick the TI-89 only if your program mandates CAS work.
What calculator is allowed on the ARE (Architect Registration Exam)?
The ARE 5.0 is computer-based and NCARB provides a built-in on-screen calculator for divisions that allow it, including Practice Management and Project Management. You cannot bring a personal calculator into the testing center. The best ARE strategy is to train on the same brand of calculator NCARB provides so the on-screen tool feels familiar. The TI-84 Plus CE or a Casio fx-991EX Plus 2 both build that muscle memory well.
Is architecture very math heavy?
Architecture is moderately math heavy, mostly through structures, environmental systems, and construction documents courses. You will use trigonometry, basic algebra, fractions, and some logarithms daily in studio. You will not use advanced calculus or symbolic algebra unless your program specifically requires it. A good scientific calculator handles almost all of the math an architecture student encounters in a five-year B.Arch.
Is a TI-84 allowed on the SAT?
Yes, the TI-84 Plus CE is explicitly approved for the SAT, along with the TI-84 Plus, TI-84 Plus Silver Edition, and most other TI-84 family models. Approved graphing calculators on the SAT include any TI-84, TI-Nspire, Casio FX-CG50, Casio FX-9750GIII, HP Prime, and NumWorks calculators. Casio fx-991ES Plus 2 is also approved as a scientific option.
Do engineers use the TI-84?
Yes, the TI-84 Plus CE is the most common graphing calculator in US engineering programs. Engineering students use it for calculus, differential equations, statistics, and matrix-heavy coursework. Architecture students share much of that math but rarely need the full symbolic-algebra toolkit of a CAS calculator like the TI-89 or TI-Nspire CX II CAS.
Is a TI-84 a good calculator for college?
The TI-84 Plus CE is one of the best calculators for college because it is approved for SAT, ACT, AP, and most college math placement tests, lasts about a month on a single charge, and runs the MathPrint textbook-style display. For architecture school specifically, a TI-84 covers every math requirement, and the same familiarity carries into ARE prep.
What is the best cheap calculator for architecture students?
The Casio fx-991ES Plus 2 is the best cheap calculator for architecture students. It runs 417 functions including trig, fractions, statistics, and matrix math, has a Natural Textbook Display, and is approved for most standardized exams. The dual solar and battery power means it essentially never needs new batteries, and the slide-on hard case survives four years of backpack carry.
The Bottom Line
The best calculator for most architecture students is the Texas Instruments TI-84 Plus CE for its exam-approved graphing and ARE familiarity, paired with a Casio fx-991ES Plus 2 or a Calculated Industries Construction Master for daily dimensional math. If you only buy one, get the TI-84 Plus CE, because it covers school, standardized tests, and ARE prep in a single device. If you want a true architecture-specific edge, add the Calculated Industries 44080 Construction Master Pro for the studio work no general scientific calculator does well. Either way, your math will stop being the slow part of the project.
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