How can i solve these two equations simultaneously for A and B ?
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Asif Arshid
il 26 Ago 2016
Modificato: Asif Arshid
il 27 Ago 2016
I have a system of 16 equations with 4 integration constants (A, B, C and D) in each soil layer (4 layers) and each soil layer has 4 stress-strain equations. I need to solve them simultaneously for 16 constants.
Below is the simplified form of two equations, which i am trying to solve for A and B.
int(5*besselj(0,x)*besselj(1, 0.5*x)*x*(A+5) ,x,0,10) = 0;
int(5*besselj(0,x)*besselj(1, 0.8*x)*x*(A+B) ,x,0,10) = A;
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Walter Roberson
il 27 Ago 2016
The multiply by (A+5) in the first equation leads to the trivial solution A=-5, zeroing the effect of the besselj .
You can substitute A into the second equation and then do a numeric solve, restriction your range for B from 5 onwards; the numeric solution turns out to be about B = 5.57463755753316
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