How can i make my code interactive?

I want to let people choose Forces and Angles then it will give them the answer of a total force.

For my first section i am already given 3 angles and 3 forces where i find the total force and result angle.

I started to use 'Force1= input('Enter force');

for all forces and angles then put end at the end of that but when i run it it just keeps going on. Then i put the equations underneath that for the total force and result angle but it doesnt run.

[Rik]

Show the code you're using. The input function is indeed the function you should be using (unless you want to make a GUI).

[Amanda Michel]

%% 1st section

Force = [100, 200, 50];

theta = [-90, 90, 30];

% angle to radians

theta = theta.*pi/180;

%sum and components of X

ForceX = Force.*cos(theta);

XFORCEtotal = sum(ForceX);

%sum and components of Y

YFORCEtotal = sum(Force.*sin(theta));

%result angle (radians)

resultangle = atan(YFORCEtotal./XFORCEtotal);

%convert to degrees

resultangleDEGREE = resultangle.*180/pi

TOTALFORCE = XFORCEtotal./cos(resultangle)

%mesh

[XForce, Ytheta] = meshgrid (Force, theta);

Z = peaks(XForce, Ytheta);

surf (XForce, Ytheta, Z)

%% 2nd section interactive

valid = 0

while valid == 0

Force1 = input('Enter 1st Force');

Force2 = input('Enter 2nd Force');

Force3 = input('Enter 3rd Force');

Angle1 = input('Enter 1st angle');

Angle2 = input('Enter 2nd angle');

Angle3 = input('Enter 3rd angle');

hold on;

ForceALL = [Force1, Force2, Force3];

AngleALL = [Angle1, Angle2, Angle3];

AngleALL = AngleALL.*pi/180;

XForceALL_total = sum(ForceALL.*sin(theta));

YForceALL_total = sum(ForceALL.*cos(theta));

Angle_Result = atan(YForceALL_total./XForceALL_total);

Angle_ResultDegrees = Angle_Result.*180/pi

Total_Force = XForceALL_total./cos(Angle_Result)

hold off;

end

disp('Angle_ResultDegrees');

disp('Total_Force');

Answer 1

[Rik]

You aren't checking if the values are valid. That means you're never changing the value of valid, which results in an endless loop.