Mathlean · Online math workspace

Inverse error function calculator

Find the argument corresponding to a supported error-function value.

How to use this calculator

Replace 0.5 in ErfInv; the real result is about 0.476936.

Tap the math below to edit it and see the result. Once a result is ready, press Tab on a hardware keyboard to accept it. Outside a matrix, Return completes the line; the phone math keyboard has the same Return action.

Try it here

ErfInv⁡(0.5)\operatorname{ErfInv}\left(0.5\right)

Interactive tools require JavaScript. You can read the guide and example without it.

What to know

Real inputs lie between −1 and 1, with infinite limits at the endpoints.

Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.

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