Question

Creat a matlab function that calculates: f(x, y) = xy/(exp(x) + exp(-y)) for two vectors of values x and y. Name your function function_xy: The inputs should be in the same order: .X: vector of values • y: vector of values The ouput is: • A: is the calculated array f(x,y) Function 1 function (Outputs] = YourFunctionName(Inputs) 2 % Input code here end Code to call your function 1 X=-4:0.5:4 2 y=-5:1:5 4 A = function xy(x,y)

Answer 1

Code to call the function script:
x=-4:0.5:4;
y=-5:1:5;
A=function_xy(x,y)

Function script:

function f=function_xy(x,y)
m=min(min(x),min(y)):0.5:max(max(x),max(y));
x1=zeros(1,length(m));
x1(find((m>=min(x))&(m<=max(x))==1))=x;
x=x1;
y1=upsample(y,2);
y=y1(1:length(x1));
f=(x.*y)./(exp(x)+exp(-y));
end

Output

A =

Columns 1 through 13:

-0.00000 0.00000 0.29295 -0.00000 0.44698 -0.00000 0.53160 -0.00000 0.32403 -0.00000 0.00000 0.00000 0.32403

Columns 14 through 21:

0.00000 0.53160 0.00000 0.44698 0.00000 0.29295 0.00000 0.0000