Unable to use function in script

I am new to matlab, i created a function file and it is working fine while using in command winow but showing "Not enough input arguments." while using in a script

function [V,A,Up,dV,dA] = VAUt(ct,B,L,r,R,Ach,Ap,N)

B = B*0.0254;

L = L*0.0254;

Ach = Ach*0.00064516;

Ap = Ap*0.00064516;

Vd = 22*(B^2)*L/28;

Vc = Vd/(r-1);

V = Vc*(1+0.5*(r-1)*(R+(1- cosd(ct))-((R^2)-((sind(ct))^2))^0.5));

A = Ach + Ap + 22*B*L*(R+1-cosd(ct)+((R^2)-(sind(ct))^2))/14;

Up = 22*L*N*sind(ct)*(cosd(ct)/(((R^2)-(sind(ct))^2)^0.5)+1)/7;

dV = Vc*(R/2 - cos((pi*ct)/180)/2 - (R^2 - sin((pi*ct)/180)^2)^(1/2)/2 + 1/2);

dA = (11*B*L*((pi*sin((pi*ct)/180))/180 - (pi*cos((pi*ct)/180)*sin((pi*ct)/180))/90))/7;

end

in = [15,14,14,9,6,231,154,1500];

[Vt,At,Upt,dVt,dAt] = VAUt(in);

A = [Vt,At,Upt,dVt,dAt];

for i = 0:1:36

in(1) = i*5;

A(:,:,i) = VAUt(in);

end

Answer 1

[Stephan]

Hi,

you define an array as input arguments. Matlab interprets your array as one input argument, not as 8 as you think. This is because Matlab accepts vectorized functions, which would accept vectors of every single input argument and would calculate the function for all of them with as many function results as the vector has elements. This saves time and no for loops are needed. But the other side is, that you can not give multiple input arguments the way you do.

Best regards

Stephan

[Manish]

Okay, then how to give the input?

Can you please give me any solution for this

[Vt,At,Upt,dVt,dAt] = VAUt(15,14,14,9,6,231,154,1500), even this is not working in the script, where as it is working fine in the command window

[Stephan]

ct = 15;
B = 14;
L = 14;
...
[Vt,At,Utp,...] = VAUt(ct,B,L,...)

or you rewrite your function to accept the vector argument for scalar values of all inputs:

function [V,A,Up,dV,dA] = VAUt(in)
    % Give values to function
    ct = in(1);
    B = in(2);
    L = in(3);
    r = in(4);
    R = in(5);
    Ach = in(6);
    Ap = in(7);
    N = in(8);
    
    % calculate results
    B = B*0.0254;
    L = L*0.0254;
    Ach = Ach*0.00064516;
    Ap = Ap*0.00064516;
    Vd = 22*(B^2)*L/28;
    Vc = Vd/(r-1);
    V = Vc*(1+0.5*(r-1)*(R+(1- cosd(ct))-((R^2)-((sind(ct))^2))^0.5));
    A = Ach + Ap + 22*B*L*(R+1-cosd(ct)+((R^2)-(sind(ct))^2))/14;
    Up = 22*L*N*sind(ct)*(cosd(ct)/(((R^2)-(sind(ct))^2)^0.5)+1)/7;
    dV = Vc*(R/2 - cos((pi*ct)/180)/2 - (R^2 - sin((pi*ct)/180)^2)^(1/2)/2 + 1/2);
    dA = (11*B*L*((pi*sin((pi*ct)/180))/180 - (pi*cos((pi*ct)/180)*sin((pi*ct)/180))/90))/7;
end

Then you can calculate the function in the given form:

A = zeros(1,5,36);
in = [5,14,14,9,6,231,154,1500];
for i = 1:36
     in(1) = i*5;
     [Vt,At,Upt,dVt,dAt] = VAUt(in);
     A(:,:,i) = [Vt,At,Upt,dVt,dAt];
end

Note that i corrected two additional error in your for loop, due to i=0 is not valid and your code leaded to some curios results for A.