Mathlean · Online math workspace
Logarithmic integral calculator
Evaluate the logarithmic integral li used in prime-counting approximations.
How to use this calculator
Replace 2 in LogIntegral; the example is approximately 1.045164.
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 singularity at 1 requires the function's principal-value convention; it is not an ordinary integral through that pole.
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