Graph

Function plotter

Sketch y = f(x) from a one-line formula. Variable x, constants pi and e, multiply with *, power with ^. Functions: sin, cos, tan, sqrt, log, exp, abs. The address bar can store your plot (share or bookmark). CAD SVG is under the chart.

Syntax reference

Only x is a variable; use 2*x not 2x.
pi and e are constants (about 3.14159 and 2.71828) anywhere a number is allowed.
^ is right-associative; unary - binds looser than ^ (so -x^2 is -(x^2)).
Functions need parentheses: sin(x), exp(-x^2).
f′ in the graph is a numerical derivative from your samples (rough if the curve is jagged).
Shareable URL query: f, xmin, xmax, n, optional d=1 (show derivative), grid=0 (hide grid).

Expression & range

Quick examples

f(x)

x min

x max

Samples

Show f′ (numerical) Grid

Tip: Enter plots when the expression field is focused.

Graph

Export size: 211.667 × 111.125 mm (800×420 px at 96 DPI).

Sample table

x	y

Parser debug log