GraphyCalc is a 3d graphing calculator, allowing you to interactively explore 3d functions.
Nerdy Details: The formula you supply calculates the height z from the variables x and y between -1 and 1. Formulas are composed of arithmetic operators (+ - * / ^), built-in functions (abs acos asin atan ceil cos exp floor log round sin sinc sqrt tan), and constants (E PI).
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