MATLAB: Defining a projection function

MATLABprogramming

I have defined a function of three variables

function a = test(A,B,C)
    a = A.*power(B,0.3).*power(C,0.7);
end

Now I want to define a function test2 that is a function test2 that is a single variable function of C with A=1 and B=10. Please advise.

Best Answer

Try this:

test2 = @(C) test(1,10,C)

Related Solutions

MATLAB: Error receiving an array as an output of one of the variables.

Are you calling it like this. Read here: https://www.mathworks.com/help/matlab/ref/function.html#btexm36

a = [5 9.1 10.2];
C = [90 50 115];
b = [6 9.1 8.1];
[A, c, B] = solveSAS(a, C, b)
function [A, c, B] = solveSAS(a, C, b)
c = sqrt(a.^2 + b.^2 - 2*a.*b.*cosd(C));
B = asind((b.*sind(C))/c);
A = 180 - (B+C);
end

Result

A =
  53.468225640646608  93.468225640646608  28.468225640646608
c =
   7.810249675906654   7.691652363680729  15.475252552705987
B =
  36.531774359353399

MATLAB: Two surfaces plot hard to distinguish

The surface plots are color according to their height in Z-direction. It is not meaningful to use a colored patch in the legend at all, because this cannot be used to identify the surface object.

Do you want them to have different colors?

function main
A  = 3.14e3;
AS = A * 1.03;
[B, C] = meshgrid(1:1000e9:30000e9, 1:10e6:200e6);
Z      = Test(A, B, C);
figure
h1 = surf(B, C, Z, 'FaceColor', 'b');
hold on
ZS = Test(AS, B, C);
h2 = surf(B, C, ZS, 'FaceColor', 'r');
legend([h1, h2])  
end
function a = Test(A,B,C)
a = A.*power(B,0.3).*power(C,0.7);
end

Now you have a red and a blue surface, while the latter is hidden slightly under the red on (you can use the small rotation tool icon in the figure toolbar to find it).

The scientific notation 1e9 is much more efficient and nicer than 1*power(10, 9).

Best Answer

Related Solutions

MATLAB: Error receiving an array as an output of one of the variables.

MATLAB: Two surfaces plot hard to distinguish

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