Graphable: Graphing Calculator

Graphable is a graphing calculator for the times your real one is not in the room. Type a function, watch it draw, and move the window until the part you need is on screen. It is a companion to the calculator you already own, not a replacement for it. Exams ban phones. Homework does not. PLOTTING IS FREE, AND STAYS FREE • Type y = and get a curve. sin(x), x^2 - 3x + 2, e^x, ln(x), |x|, and the rest of what a course asks for • Several functions at once, each in its own colour, so you can see where one meets another • Edit a function in place and the plot follows • Degrees or radians, switched from the same row you type in • A mistyped expression points at the character that broke it instead of just saying no THE WINDOW, ALSO FREE • Pinch and drag to move around the plane • Or set x min, x max, y min and y max exactly, the way a calculator's window screen does it • Reset returns you to…