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3D graphing calculator! Plot surfaces, functions, complex & stats. Free, offline
MathSurface is a free 3D graphing calculator and function plotter for math. Type a formula and instantly see it come to life as a 3D surface, a 2D graph, a solid of revolution, a locus on the complex plane, or a probability distribution. Pinch, drag and rotate the interactive 3D view to explore every angle in real time. Whether you are a student, teacher or math lover, MathSurface turns abstract equations into shapes you can actually see. Perfect for middle school, high school and university math — calculus, algebra, trigonometry, linear algebra, complex numbers and statistics. Great for studying, homework, exam prep, classroom demos and making teaching materials. Five tools in one app: ● 3D surfaces — Plot z = f(x, y) as a smooth, rotatable 3D surface. Visualize paraboloids, saddles, Gaussian bells, ripples, sine·cos waves and more. Rotate, zoom, view cross sections and compare two surfaces side by side. ● 2D function graphs — Draw explicit and implicit functions: lines, parabolas, cubics, sine, cosine, tangent, exponential and logarithm. Plot circles, ellipses, hyperbolas and other curves from equations. ● Solids of revolution — Spin a 2D curve around the x-axis or y-axis and see the 3D solid of revolution it sweeps out. ● Complex plane — Visualize loci on the complex plane: circles, lines, rays, ellipses, Apollonius circles and more. Show powers zⁿ and the n-th roots of unity. ● Probability & statistics — Plot the binomial distribution B(n, p) and the normal (Gaussian) distribution N(μ, σ²) with adjustable parameters. Powerful formula input supports sin, cos, tan, exp, log, sqrt, powers (^), absolute value |…| and more. Type your own custom equations, or start from dozens of built-in presets and examples. Save your favorite formulas with ★ and reopen them anytime. Simple, clear and completely free. No account needed and it works offline — a handy math visualizer, graphing tool and surface plotter for anyone learning or teaching math. ■ Key features ● 3D surface plotter: rotate, zoom, cross section, compare two surfaces ● 2D graphs: explicit & implicit functions, curves from equations ● Solids of revolution around the x-axis and y-axis ● Complex plane: loci, powers zⁿ, roots of unity ● Probability: binomial and normal (Gaussian) distributions ● Custom formulas plus dozens of built-in presets and examples ● Save favorites with ★ and reuse them anytime ● Free, no account, works offline, multilingual