How to get rid of "exponential integral function, Ei(x)" in symbolic math integrartion?!
조회 수: 1 (최근 30일)
이전 댓글 표시
Hi,
I'm trying to calculate the integral of the following f(x) in MATLAB:
f(x) = -m/(x*e^mx)
When I write something like this:
syms x m e
int(-m/(x*(e^(m*x))), x)
I get my answwer as a function of exponential integral function, which is ans = m*Ei(1, m*x*log(e))
How can I get rid of Ei(x) and find an exact solution to my problem?
Thanks
댓글 수: 3
Walter Roberson
2015년 12월 16일
You probably want
int(-m/(x*(exp(m*x))), x)
You will still get Ei but you will get a simpler solution that does not depend upon the undefined symbol e
답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Calculus에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!