Mathlean · Online math workspace
Sine integral calculator
Evaluate the sine integral Si for a numerical argument.
How to use this calculator
Replace 1 in SinIntegral; Si(x) integrates sin(t)/t from zero to x.
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
Arguments use radians. Do not confuse Si with the elementary sine function.
Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.