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optical depth integral

Project: radiation
Views: 60
from sage.symbolic.integration.integral import indefinite_integral t,D,b = var('t D b') indefinite_integral(exp(D*t)*t^(4*b), t)
-(-D*t)^(-4*b - 1)*t^(4*b + 1)*gamma(4*b + 1, -D*t)
n(gamma (3,-2),20) n(gamma (3,2),20)
14.778 1.3534