this is rather embarrassing, but it's late, i have a headache and can't figure this out.(adsbygoogle = window.adsbygoogle || []).push({});

so i have this complicated function i need to sum (not sum as in add up - sum as in sum a series).

my formula that needs to be summed:

(2/(n*pi))*sin(n*pi*z/L)*e^(-(n^2)*pi*pi*k*t/(L^2))

pi, z, L, k, t are constants, i want sum n from 1 to 10... i looked through all the "sum" functions but i couldnt find a summation in which i could enter a function to be summed.

help?

Thanks

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# Microsoft excel help

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