MATLAB: Storing only part of the output of a function with multiple outputs

function with multiple outputsMATLAB

Suppose you have a function with many outputs, e.g.,

[C,ia] = setdiff(A,B)

I am only interested in ia and not C. Is there some way of only calling on ia without storing C? Thank you very much!

Use the tilde ‘~’ to suppress outputs you don’t need.

In this instance:

[~,ia] = setdiff(A,B)

The optimisation routines need vector input for the parameters. I combine them as vector ‘p’ here.

Try this:

x0 = [0.5; 500];
[x, fval] = fmincon(@(p) -launch(p(1),p(2)), x0, [],[],[],[], [0.11 15], [1 1310])

Note that the optimisation functions minimise the function output, so to maximise it, you need to negate the the function.

When I ran your function, I got:

x =
   893.8695e-003
   473.4764e+000
fval =
   -38.4141e+000

So ‘m2=0.89’, ‘k2=473’, producing a distance of 38.4.

You may need to experiment to get the result you want. See the documentation for fmincon for details on what it can do.

A = [20 30 40 50];
fprintf(1, 'A(%d)=%d ', [(0:length(A)-1).' ; A(:)].' );
fprintf(1, '\n');