// Blake Burns Technologies Inc.

BlakeCalc

Scientific Calculator + Whiteboard

A professional-grade scientific calculator engineered for the demands of mathematics, engineering, and science. Featuring symbolic computation, a free-form whiteboard, matrix operations, calculus tools, and over 120 built-in functions — all in a single, elegant mobile app.

Get the App Live Demo ↓
sin(π/4) + √(2)/2
1.41421
Scientific CalculatorMatrix OperationsComplex Numbers Calculus ToolsWhiteboard ModeUnit Converter DMS AnglesNumber BasesConstants Library History LogMathJS EngineReact Native + Expo Scientific CalculatorMatrix OperationsComplex Numbers Calculus ToolsWhiteboard ModeUnit Converter DMS AnglesNumber BasesConstants Library History LogMathJS EngineReact Native + Expo
0 Built-in Functions
0 Calculator Modes
0 Physical Constants
0 Angle Systems
0 File, Zero Dependencies*
// Core Capabilities

Built for Precision.
Designed for Speed.

Every feature engineered for professionals who demand accuracy without compromise.

01
∑

Scientific Engine

Powered by MathJS — evaluate complex expressions with arbitrary precision, handling everything from basic arithmetic to symbolic manipulation in real time.

MathJSArbitrary PrecisionSymbolic
02
𝑖

Complex Numbers

Full complex number arithmetic including Re(), Im(), arg(), and conj() operations. Results elegantly formatted as a+bi with full precision.

Re / ImConjugateArgument
03
∫

Calculus Tools

Numerical differentiation via the central difference method and integration via Simpson's Rule with 10,000 subdivisions for high-accuracy results.

d/dx∫ dxSimpson's Rule
04
⊞

Matrix Operations

Define matrices up to any dimension. Compute determinants, inverses, transposes, eigenvalues and eigenvectors via a dedicated matrix input modal.

det()inv()eig()transpose
05
✏

Freeform Whiteboard

A built-in SVG whiteboard for sketching graphs, diagrams, and working out problems by hand. Multiple pen colors, stroke widths, and an eraser tool.

SVG CanvasPan ResponderMulti-color
06
°

DMS Angle System

Native support for Degrees-Minutes-Seconds notation. Input angles as 27°30′45″ and BlakeCalc automatically converts to decimal before evaluation.

DEG / RAD / GRADDMS ↔ Decimal
07
⬡

Number Base Modes

Switch seamlessly between Decimal, Hexadecimal, Binary, and Octal modes for programming and low-level math workflows.

DECHEXBINOCT
08
φ

Constants Library

Instant access to 40+ physical and mathematical constants: π, ℯ, φ, ℏ, c, G, k_B, μ₀ and more — tap to insert directly into any expression.

MathPhysicsChemistry
09
📋

Calculation History

Every expression and result is saved in a scrollable history log. Tap any previous result to re-insert it — keep the flow without retyping.

Persistent LogTap to Reuse
// Supported Functions

120+ Functions.
Zero Compromises.

✏
⬜
⊘
🗑
// Whiteboard Mode

Think Visually.

Sometimes math needs space. BlakeCalc's built-in whiteboard gives you a full SVG canvas to sketch equations, draw diagrams, annotate problems, and think through ideas with your hands.

Supports multiple pen colors, four stroke widths, a precision eraser, and undo. Perfect for students, engineers, and anyone who thinks better with a stylus.

  • → SVG-powered rendering — infinitely sharp
  • → 12 pen colors with customizable widths
  • → Precision eraser with real-time cursor preview
  • → Seamlessly switch between calc and canvas
// Calculator Modes

One App.
Every Mode.

Basic Arithmetic
Addition, subtraction, multiplication, division, modulo with full operator precedence.
((12 + 7) × 3 - 4) ÷ 2
Powers & Roots
Square roots, cube roots, nth roots, exponentiation and scientific notation.
∛(27) + 2^10
Built-in Constants
One-tap access to π, ℯ, φ, ∞ and all physical constants.
2 × π × 6.371e6
Trigonometry
sin, cos, tan and inverses in DEG, RAD, or GRAD. Hyperbolic variants too.
arctan(1) × (180/π)
Logarithms
log₁₀, natural log ln, and arbitrary base log(x, b).
log(1000) + ln(ℯ^3)
Combinatorics
Permutations nPr, combinations nCr, and factorial n!
nCr(10, 3) + 7!
Complex Numbers
Full complex arithmetic with component extraction and conjugation.
Re((3+4i)^2)
Determinant
Compute the determinant of any square matrix with a clean input grid.
det([[1,2],[3,4]])
Inverse
Find the matrix inverse when it exists, displayed with full precision.
inv([[2,1],[5,3]])
Eigenvalues
Compute eigenvalues λ of any real or complex matrix.
eigs([[4,1],[2,3]])
Transpose
Instantly transpose rows and columns of any defined matrix.
transpose([[1,2,3],[4,5,6]])
Numerical Derivative
Central difference method, h=1e-7. Differentiate any expression at any point.
d/dx [sin(x²)] at x=1
Definite Integral
Simpson's Rule with 10,000 panels. High accuracy numerical integration.
∫₀^π sin(x) dx
Length
Convert between meters, feet, inches, miles, km, light-years and more.
1 mi → 1.60934 km
Temperature
Celsius ↔ Fahrenheit ↔ Kelvin with high-precision conversion.
100°C → 373.15 K
Angle Systems
Convert DMS ↔ Decimal Degrees ↔ Radians ↔ Gradians.
27°30′45″ → 27.5125°
// Interactive Terminal

Try It Right Now.

Type a math expression below and see BlakeCalc evaluate it live. Powered by the same MathJS engine inside the app.

BlakeCalc — Expression Engine v1.0
$ BlakeCalc initialized
// MathJS engine loaded. 120+ functions available.
$ sin(pi/4) + sqrt(2)/2
→ 1.414213562
$ det([[1,2],[3,4]])
→ -2
$ factorial(10)
→ 3628800
$ (3+4i)^2
→ -7 + 24i
$ 
// Technology

Built on a Solid Stack.

React Native Expo MathJS React Native SVG TypeScript PanResponder SafeAreaView FlatList Modal Google Mobile Ads iOS + Android Dimensions API Platform.select Central Difference Simpson's Rule DMS Regex Parser

The Calculator You've
Always Needed.

Stop hunting for specialized tools. BlakeCalc is the all-in-one scientific powerhouse engineered by Blake Burns Technologies Inc.

🍎
Download on the (IN REVIEW) App Store
▶
Get it on (IN REVIEW) Google Play