Mathlean · Online math workspace
Exponential integral calculator
Evaluate the exponential integral Ei at supported arguments.
How to use this calculator
Replace 1 in ExpIntegralEi. The value at 1 is approximately 1.895118.
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
The logarithmic singularity and complex branch cut are part of the function; this is not simply exp(x)/x.
Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.