Plotting a function over an interval

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I'm dealing with defining a function and then plotting it. The function is y1= arctan(exp(x)*(x-1))+ pi/2 which I need to plot it over interval x=0:0.1:2 , but every time I get an error. What do I need to do?
I did this:
x = 0:.01:2;
y1= arctan(exp(x)*(x-1))+ pi/2
Also, if I want to have several functions plotted in a same window but with different colors, what should I do?

Accepted Answer

the cyclist
the cyclist on 27 Sep 2011
You need to use ".*" instead of "*" to multiply each element of the vector, and also the inverse tangent function in MATLAB is atan() not arctan():
>> y1= atan(exp(x).*(x-1))+ pi/2

More Answers (2)

Kris Hoffman
Kris Hoffman on 29 Nov 2020
Tought I'd add to this answer.
y1 = @(x) atan(exp(x).*(x-1))+ pi/2

Fangjun Jiang
Fangjun Jiang on 27 Sep 2011
You mean this?
x = 0:.01:2;
y1= atan(exp(x).*(x-1))+ pi/2;
help plot for details.

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