Functions of I, for i=1, n, n-1

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Kyle Langford
Kyle Langford 2023-4-29
回答： Walter Roberson 2023-4-29
I have the equation:
dT = (a/r) * ((T(i+1) - T(i-1))/2*dr) + r*((T(i+1) - T(i) + T(i-1)) / dr^2) + q/cp*rho;
I want to plug in values for i, such as i=1, i=2:n-2, and i=n-1. where n=51
I am not sure how to go about this.

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Walter Roberson
Walter Roberson 2023-4-29
dT = @(i) (a/r) * ((T(i+1) - T(i-1))/2*dr) + r*((T(i+1) - T(i) + T(i-1)) / dr^2) + q/cp*rho;
dT(2:n-2)
Caution, dT(1) will fail.

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