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SI.LI
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1992-01-25
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267b
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16 lines
d(Si(x)/d(x)) = sin(x)/x
d(Ci(x)/d(x)) = cos(x)/x
d(Ei(x)/d(x)) = exp(x)/x
d(Li(x)/d(x)) = 1/ln(x)
inte(sin(x)/x*d(x)) = Si(x)
inte(cos(x)/x*d(x)) = Ci(x)
inte(exp(x)/x*d(x)) = Ei(x)
inte(d(x)/ln(x)) = Li(x)
Si(0)=0
Si(inf)=pi/2
Si(-inf)=-pi/2
end