for one dimensional integral [tex] \int_{0}^{\infty}dxf(x) [/tex] i know how to make minimal substraction however for an integral in several variables how is it done ??(adsbygoogle = window.adsbygoogle || []).push({});

for example for a triple integral

[tex] \int_{0}^{\infty} \int_{0}^{\infty} \int_{0}^{\infty}dx dy dz f(x,y,z) [/tex]

i must perfrom

a minimal substraction in 'x'

a minimal substraction in 'y'

a minimal substraction in 'z'

i know how to make this however what is the following step ?

a minimal substraction in 'x,y'

a minimal substraction in x,z

a minimal substraction in y,z

a minimal substraction in x,y,z

this is the part i do not know how to do

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# Understanding minimal substractio for several variables

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