how can i plot the function m(t) in matalb?

Answer 1

[Akira Agata]

How about this?

% Calculate m(t) between time = 0~0.08
time = 0:0.001:0.08;
y = arrayfun(@mt, time);

% Plot m(t)
figure
plot(time,y)

% Function m(t)
function y = mt(time)
t = mod(time,0.04);
if t < 0.01
  y = -4 + (8/0.01)*t;
elseif t < 0.02
  y = 4;
else
  y = 4 + (-8/0.02)*(t-0.02);
end
end

[Greg Heath]

Copying and pasting your answer yields the error message

 Error using arrayfun
 Undefined function or variable 'mt'.

Hope this helps.

Greg

[Akira Agata]

Hi Greg-san,

Please save as a script file, and run it. Then, the following plot appears.

Answer 2

[Greg Heath]

% Save the file mt. Then display it

>> close all, clear all, clc

>> type mt

 function y = mt(time)
   t = mod(time,0.04)
   if t < 0.01
      y = -4 + (8/0.01)*t;
   elseif t < 0.02
      y = 4;
   else
      y = 4 + (-8/0.02)*(t-0.02);
   end
 end

% Now,use it

>> time = 0:0.001:0.08; y = mt(time);

>> figure, plot(time,y)

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Hope this helps.

Thank you for formally accepting my answer

Greg