Sievert's Integral

Author

Eric W. Weisstein
December 26, 2008

This notebook downloaded from http://mathworld.wolfram.com/notebooks/Calculus/SiervertsIntegral.nb.

For more information, see Eric's MathWorld entry http://mathworld.wolfram.com/SiervertsIntegral.html.

©2008 Wolfram Research, Inc. except for portions noted otherwise

Evaluation

v5.2

Integrate[Exp[-x Sec[ϕ]],{ϕ,0,θ}]

V7

Integrate[Exp[-x Sec[ϕ]],{ϕ,0,θ}]

Integrate[Exp[-x Sec[ϕ]],{ϕ,0,θ},Assumptions->θ>0]