Finding radius of sphere and circle

Hello! So i'm trying to find the values of radius of a sphere and a circle from their formulas of area and volume.I want my_eval_parameter function to have as arguments the area of the circle (E_C) and the volume of the sphere (E_V) and I want my function to be called back with this way:

[rad1, rad2] = my_eval_parameters(E_C,V_S);

This is the code that I've managed to write:

function my_eval_paramereters=calculations(rad1,rad2)
E_C = input('enter value for E_C:...');
rad1 = pi*(rad1*rad1);
rad2 = input('enter value for V_S:... ');
rad2(rad2) = (4/3)*pi*(rad2^3);
[rad1, rad2] = my_eval_parameters(E_C,rad2);
end 

Answer 1

[Ahmed raafat]

change the output name and write my_eval_parameters code

and change your function code into

function [rad1,rad2]=calculations(rad1,rad2)

[Nick Vasilakis]

I don't understand..can you please write the code?

[Ahmed raafat]

Wait

I am really confused

what are the inputs and the outputs?

Answer 2

[Matt J]

The code should look more like this,

function [radcircle,radsphere]=calculations(areaCircle,volumeSphere)

 radCircle=sqrt(areaCircle/pi);
 radSphere=...
end 

Answer 3

[VBBV]

@Nick Vasilakis You can change the code structure as follows, since you would need a recursive function

function calculations(rad1, rad2)
   E_C = input('enter value for E_C:...');

%rad1 = pi*(rad1*rad1);

   E_V = input('enter value for V_S:... ');

%rad2 = (4/3)*pi*(rad2^3);

    [rad1, rad2] = my_eval_parameters(E_C,E_V);
    calculations(rad1,rad2)
end



function [rad1, rad2] = my_eval_parameters(E_C,E_V)
   
     rad1 = sqrt(E_C/pi)
     rad2 = ((3*E_V)/(4*pi))^(1/3)
end

%E_C = input('enter value for E_C:...');rad1 = pi*(rad1*rad1);rad2 = input('enter value for V_S:... ');rad2(rad2) = (4/3)*pi*(rad2^3);[rad1, rad2] = my_eval_parameters(E_C,rad2);end 

[VBBV]

hopefully you know a way to stop the recursion. In most cases you need a break statement

inside calculations function.