How do I partial differentiation a function with 2 variables?
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My function is P(V,R) = V^2/R.
I know how to find the partial differentiation of the function with respective to V or R.
However, how do I find the partial differentiation of P with the value V=120 and R=2000?
Because I know there is a formula to find the partial differentiation of P.
How do i put it in Matlab?
采纳的回答
VBBV
2020-11-1
Try this
% if true
% code
% end
v = sym('120')
r = sym('2000')
p = diff(v^2/r)
Since you assign for V, R as constants, the pde will return as 0
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