Math Calculator
3D Graphing Calculator
Enter a surface equation such as sin(x) + cos(y) or x^2 - y^2,
preview sample z-values, and confirm whether the expression is ready for a 3D grapher.
x and y to generate a surface preview table.
What this 3D graphing calculator does
This version validates a surface expression, samples the equation across your chosen domain, and shows representative z-values so you can confirm the equation behaves as expected before moving into a full visual graphing workflow.
Supported input style
Use standard expressions involving x, y, numbers, parentheses,
and common functions such as sin, cos, tan,
sqrt, abs, and log. Use ^ for powers.
How to read the preview
The sampled range helps you see whether the function stays bounded, crosses zero, or grows sharply. The sample table is useful for checking symmetry and spotting values that would make a final graph difficult to view.
Current scope
This page is focused on equation preview and validation, not a full WebGL plotting engine. It is a lightweight companion for classroom use, surface checks, and expression debugging.
Frequently Asked Questions
Can I graph implicit or parametric surfaces here?
Not in this version. It is built for explicit surfaces in the form z = f(x, y).
What functions are supported?
Common math functions such as sin, cos, tan, sqrt, abs, exp, and log are supported.
Why would I use a sample table instead of a full graph?
The sampled values quickly reveal whether the expression is valid and whether the chosen domain is sensible, without requiring a heavy 3D rendering layer.