Parametric Grapher
A parametric curve gives both coordinates as functions of a parameter t. Enter x(t) and y(t) and a t range; the calculator samples 600 points along the interval and plots the curve with an equal aspect ratio so circles look round.
Frequently asked questions
What variable should I use?
Use t for both x(t) and y(t). Other letters are treated as unknown function names.
How are the axes scaled?
With equal aspect ratio — one unit on x is one unit on y — so a circle stays circular and not elliptical.
Can the t range exceed 2π?
Yes. A larger range simply samples more of the curve; for closed curves like (cos t, sin t) it just retraces the same shape.