calcul.io

math playground

New calculation

Help

Instructions Examples Functions Constants

Functions
Special
erf

erf

erf(x)

Try it yourself:

$1	erf(0.2)
$2	erf(-0.5)
$3	erf(4)

All functions

(c) calcul.io 2025

Math Playground. Simple and fast calculator for your everyday math needs. Calculate without limitations, jot and experiment with ideas.

Terms & Conditions Privacy Policy

Try also:

Online percentages calculator

Base64 encode and decode