Face Error "Input arguments must be numeric or objects which can be converted to double' while plotting Contour

S11 =@(x1,x2)(262144*x2*((25*x1^2)/2-75000*x1+75000000))/5592405333333333
x1=0:6000;
x2= 0:800;
contour(x1,x2,S11)

Answer 1

[VBBV]

contour(x1,x2,S11(x1,x2))

[VBBV]

S11 =@(x1,x2)(262144*x2.*((25*x1.^2)/2-75000*x1+75000000))/5592405333333333

[VBBV]

Use element wise power and multiplication in expression

[inzamam shoukat]

S11 =  @(x1,x2)(262144.*x2.*((25.*x1.^2)/2 - 75000.*x1 + 75000000))/5592405333333333;
x1=0:6000;
x2= 0:800;
contour(x1,x2,S11(x1,x2))
% Hello VBBV Thanks for answering i implemented your code but its does not work
% Now I am Getting This Error "Arrays have incompatible sizes for this operation."

[inzamam shoukat]

% I also implemented the fallowing code but this time the error appeared as "Z must be at least a 2x2 matrix."

S11 =  @(x1,x2)(262144.*x2.*((25.*x1.^2)/2 - 75000.*x1 + 75000000))/5592405333333333;
for x1=0:6000;
    for x2= 0:800;
        S11(x1,x2)= contour(x1,x2,S11(x1,x2))
    end
end

[VBBV]

use meshgrid function

S11 = @(x1,x2) (262144*x2.*((25*x1.^2)/2-(75000*x1)[phone]))/5592405333333333;
x1=0:6000;
x2= 0:800;
[X1 X2] = meshgrid(x1,x2);
contour(X1,X2,S11(X1,X2))

[inzamam shoukat]

it worked thanks alot