MATLAB: Trouble With Simple ‘while’ Loop Logical Operator

while loop initial condition

Can't seem to get my while loop to execute.

-No error showing

-Getting rid of 1 initial condition in 'while' loop and the script runs (not how I want though). I need my 'while' loop to accept a number between 1 and 12 (corresponds to 1=Jan, 2=Feb, etc).

Any help with this greatly appreciated!

Script Below:

clear all
clc
M = 100;
Y = -100;
disp('After selecting a month and year, the number of days within that month will be displayed.')
while Y<0
Y = input('Please select a year: ');
end
while (M<0) & (M>12)
M = input('Please select a month: ');
end

Best Answer

It would appear you need an OR logical operator in the

while (M<0) & (M>12)

I.e. make it

while (M<0) || (M>12)

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MATLAB: ‘break’ in ‘while’ loop

From help break

In nested loops, break exits from the innermost loop only

MATLAB: I have a while loop inside a for loop. If the condition of the while loop is not satisfied, I want to jump directly to the end of the for loop. Could anyone please help

Statements a and b are necessary in my code to change the condition 1. Hence I want the entire loop to run such that each iteration of the for loop changes the variables in a way that renders condition1 false. As soon as that happens, I'd like to come out of the for loop.

The goal here is still not entirely clear but based on your comment above, as @Rik Wisselink mentioned, it seems like you want a conditional statement in place of the while loop and a while loop in place of the for loop. Does this do what want it to?

t=0:0.5:100;
lengthT = length(t);
i = 0;
while i <= lengthT          
    if condition1
        disp('Task accomplished')
        statement a
        statement b
        i = i+1;
    else
        break  %When condition1 becomes false, here we enter the while-loop
    end
end
% We end up here if condition1 becomes false -OR- when i>lengthT
statement c

Best Answer

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MATLAB: ‘break’ in ‘while’ loop

MATLAB: I have a while loop inside a for loop. If the condition of the while loop is not satisfied, I want to jump directly to the end of the for loop. Could anyone please help

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