# Cant get for loop to run

2 views (last 30 days)
Joe Bennet on 15 Nov 2021
Commented: Jon on 15 Nov 2021
Trying to calculate a value as one of the parameters it depends on increases
clc, clear, close all
f= 0.13;%Flap Length as Percenatge of Total Chord
beta= 25;%Flap Angle
c= 100;%Chord Length
tan_alpha= (f*sind(beta))/(c-f+f*cosd(beta));
alpha= atand(tan_alpha); %Effective Angle of Attack
%Calculating Effective Angle of Attack for Increasing Flap Angle
F=(0:0.1:100);
alpha= zeros(length(F)-1,1);
for n=1:1:length(F)-1
f(n)=f(n)/c
alpha(n)= ((f(n)*sind(beta))/(c-f(n)+f(n)*cosd(beta)));
end
However the for loop isnt working? any help is appreciated, what i want is a arrray of values for alpha as the value of f increases from 0 to 100

Jon on 15 Nov 2021
It looks like you define f to be a scalar at the top of your script. So it doesn't make sense to iterate through values of f(n) in the loop
Jon on 15 Nov 2021
Maybe you are getting confused between your lower case f and your upper case F? Also it looks strange that you define alpha as a scalar and then later start assigning values to an array of alpha, i.e. alpha(n) = ...

R2021a

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