Mathlean · Online math workspace
Complex contour integral calculator
Evaluate supported complex integrals with an explicit contour.
How to use this calculator
The starter integrates 1/z around the circle of radius 2 centered at zero, counterclockwise. Edit the integrand or radius.
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
Interactive tools require JavaScript. You can read the guide and example without it.
What to know
Orientation and enclosed singularities matter. Do not place a pole on the contour or omit the contour specification.
Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.