I put an if loop inside a function and it doesn't work. It doesn't work with any loop or anything I try to add like a sub-function.
1 view (last 30 days)
Show older comments
The second function in this script, d_a_const = dist_cons(v_0, v_f, t, a), doesn't work with the if loop inside it. I don't know how to fix it. It doesn't matter if I work with matrices or not, it just won't run if the loop is inside the function.
It shows this error:
Output argument "d_a_const" (and maybe others) not assigned during call to "CP_4>dist_cons".
Error in CP_4 (line 12)
d_a_const = dist_cons(v_0, t, a)
% Ejercicio 4
clc
clear
t = [1 2 1 1 3 8];
v_f = [10 10 24 24 0 0];
v_0 = [0 10 10 24 24 0];
x_0 = 0;
a = acl(v_f, v_0, t)
d_a_const = dist_cons(v_0, t, a)
function [a] = acl(v_f, v_0, t)
a = [(v_f - v_0) ./ t];
end
function d_a_const = dist_cons(v_0, t, a)
if a == 0
d_a_const = v_0 + (0.5) .* a(d_a_const) .* (t.^2);
end
end
1 Comment
Stephen23
on 6 May 2021
As an aside, note that the square brackets here are superfluous and should be removed:
a = [(v_f - v_0) ./ t];
% ^ remove these ^
Answers (1)
the cyclist
on 5 May 2021
Because a is a vector, the if statement
if a == 0
...
end
will only be entered if a==0 for all elements of a. An if statement on a vector does not "loop" over the individual elements.
So, your if statement is never entered, and d_a_const is never assigned.
2 Comments
See Also
Categories
Find more on Loops and Conditional Statements in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!