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Question: partial dervative of function ?

Question:partial dervative of function ?

Aung 60 Maple
differentiation
June 16 2024
0

using diff command to find  partial dervative of function g give zero in maple...it shouldn't be zero...how to fix itpartial_dervative.mw

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restart:
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sigma_t:= map(epsilon-> E_0[90]*epsilon_dot*((epsilon/epsilon_dot)-(sum(p[i], i = 1 .. 3)*(epsilon/epsilon_dot))+(sum(p[i]*tau[i],i=1..3))-(sum(p[i]*tau[i]*exp(-(epsilon/(epsilon_dot*tau[i]))),i=1..3))),true_strain):
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 g:= sum(( sigma[j]-sigma_t[j])^2,j=1..10):
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diff(g,p[1]);

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 (1)
 

 

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