how to write a code on matlab for a function that runs until she gets a regional answer

hi everyone!

i have a code i need to write-

i need to write a function that gets from the user amount of money he has and ask him how much money he wants to bet on.

the function needs to check that the value is regional and make sense and afterwards, if the value is good it will stop running, is isnt it will keep running until the user will insert regional value.

so far i wrote this- and its working but i dont know how to make the function keep running till the value is good

could use your help it will be helpful

thanx

function betamount = bet(money)
betamount= input('on what amount do you want to bet on?: ');
if ~isnumeric(betamount)|| betamount<=0 || betamount>money
    disp('the betamount is invaild, try again');
end
end

[Fangjun Jiang]

help while

[omer]

yes i know

i just dont know how to write that

[Steven Lord]

Why don't you show us how you've tried to write that using the while keyword. Seeing what you tried will help us tailor our suggestions for how to correct your code. It may be that you've almost got it right and we just need to explain one little detail that will make the code work and improve your understanding of how while (and/or MATLAB in general) works for the future.

Answer 1

[Milan Bansal]

Hi omer

To make the function keep asking for a valid value for "betamount" until a valid value for "betamount is entered", you can use a while loop along with continue and break statements.

Here is how you can modify your code:

function betamount = bet(money)

    while(1)
         betamount= input('on what amount do you want to bet on?: ');
         
         if ~isnumeric(betamount)|| betamount<=0 || betamount>money
             disp('the betamount is invaild, try again');
         else 
             break;
         end
    end
end

Please refer to the documention link to learn more:

• while : https://www.mathworks.com/help/matlab/ref/while.html
• break: https://www.mathworks.com/help/matlab/ref/break.html
• continue: https://www.mathworks.com/help/matlab/ref/continue.html

Hope this helps!

[Walter Roberson]

You should probably test ~isscalar(betamount) as well.