Question

Anyone here familiar/good at matlab programming?

Answer 1

Yes.

Answer 2

Im trying to do some basic if else, and need someone to take a peek at my code.

Answer 3

function [] = JohnsonJHW7 ()
% Johnson, Jason R.
% ENGR 102- Angela Martinek
% February 23rd 2014
% HW 7, Chap 8-9

clear, clc
disp('Jason Johnson')
disp('Homework 7')
disp('February 27th, 2014')
disp('Problem 8.6')
disp('Create a function called g that satisfies the following criteria:')
disp('For x < -pi g(x) = -1')
disp('For x >= -pi and x<= pi g(x) = cos(x)')
disp('For x > pi g(x) = -1')



x = [-2*pi:.1:2*pi];
plot(x, piecewise(x))
title('Graph of Piece wise Function g(x)')
xlabel('X')
ylabel('Y, g(x)')


end
function result = piecewise(x) % This function requires a scalar input.
if (x<-pi)
result = -1;
elseif(x<=pi)
results = cos(x);
else(x<2*pi)
result = -1;

end
end

Answer 4

@doc.brown

Answer 5

Are you looking for a scalar input on the result?

Answer 6

I think that is part of my problem. I want to put in a vector as input....and I want it to basically graph the output as a vector also so I can plot x from -2pi to 2pi and have it plot a piecewise function where values from -2p to - pi are == -1, values >= - pi and x<= pi - cos(x), and x>pi = =1.