Finding a summation of a two variable function keeping one parameter constant.
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I need to do a summation of a function f(x,n) such that x remains as a variable in the process and n varies from 1 to N ( like 1:100 or something).
So I need f(x,1) + f(x,2) + f(x,3) ........... + f(x,N) in a variable SUM, such that SUM could work like a function handle, with x alone as its argument.
f(x,n) is any arbitrary function.
How do I do this in MATLAB?
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Michael Soskind
2021-3-18
Sushanth,
The method for doing this depends on your function f(x,N).
If this function works with vectors, then the easiest function for this would be something in the form:
N = 1:100;
sum_function = @(x) sum(f(x, N)); % Assuming f(x,N) can take a vector N and is already defined
Then, calling sum_function(10) would provide the summation with x = 10.
Alternatively, you could make a function that only accepts X, and a range to sum over, and go through a for loop summing the values over that range. However, that is up to you.
Hope that helps,
Michael
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