SnackLab: Math Graphing

snacklab

About this app

One app for the whole span of school and university math — from quadratics
to Fourier series.

Write an equation on the left and it is drawn immediately on the right. Tap
an intersection, an extremum or an inflection point and SnackLab gives you
the exact coordinates: a fraction, a root, a multiple of π — not a rounded
decimal.

WHAT YOU CAN GRAPH

Functions
Polynomial, rational, trigonometric, exponential and logarithmic curves.
Piecewise definitions, asymptotes and removable discontinuities are handled
properly.

Calculus
Derivatives, definite-integral regions, extrema and inflection points with
exact coordinates.

3D
Surfaces, planes and lines, the curves where they intersect, and closed
regions. Rotate and pan freely.

Statistics
Distributions, interval estimates, data entry and charts.

Differential equations
Direction fields, numerical solutions, Laplace transforms. Keep several
equations and switch between them.

Engineering mathematics
Matrices and eigenvalues, vector calculus, Fourier series, the complex plane.

BUILT FOR EXPLORING

Drag a slider and watch the curve respond — coefficients, parameters and
domains update live. Save a graph straight to your photo library.

The keyboard is laid out for mathematics, not for text: fractions, roots,
exponents and Greek letters are one tap away, and the whole keyboard hides
when you want the full screen for the graph.

PRIVACY

SnackLab collects nothing. No account, no sign-in, no analytics. Everything
you type stays on your device.

Available in English, Korean, Japanese, Chinese, Spanish, Portuguese,
German, French, Indonesian and Vietnamese.

What’s new

[Laplace Transform]
- F(s) is drawn only in its region of convergence, with a dashed boundary
- Delta impulses show their strength; arrow length scales with it
- Results keep e and parameter names instead of long decimals
- Fixed step-function drawing; vertical range now auto-fits

[Vectors]
- New: sum, angle between vectors, projection
- Vector names restart from v₁ after deleting
- 2D/3D and input-mode buttons moved below the function list