Crash when Solve for Integral with 15C

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Gamo

Perhaps this attached GRAPH will help?
[attachment=5148]
or the following url Functions without Antiderivatives by TR Smith with the follwing extract:
"Exponential Functions
Here is a list of basic exponential forms that have no antiderivatives
• e^(x^2) and e^(-x^2)
• e^(x^3) and e^(-x^3)
• More generally, e^(x^n) and e^(-x^n) are non-integrable for all integers n greater than 1.
• e^(1/x) and e^(-1/x) (See link for approximate integration technique.)
• e^(1/x^2) and e^(-1/x^2)
• More generally, e^(1/x^n) and e^(-1/x^n) are non integrable for all positive integers n."

BEST!
SlideRule