Mathlean · Online math workspace

Complex argument calculator

Find the principal phase angle of a complex number.

How to use this calculator

Edit Arg(1+i). Its principal argument is pi/4 radians.

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

Arg⁡(1+i)\operatorname{Arg}\left(1+i\right)

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

What to know

Zero has no defined phase. Principal arguments differ from a continuously unwrapped phase.

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