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How to plot a functions in matlab

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x ranges from 10-50 and y = [exp(-x)/x] - [exp(-(2+x))/(2+x)]

Accepted Answer

the cyclist
the cyclist on 23 Feb 2013
x = 10:0.1:50;
y = (exp(-x)./x) - (exp(-(2+x))./(2+x));

More Answers (2)

Youssef  Khmou
Youssef Khmou on 23 Feb 2013
Edited: Youssef Khmou on 23 Feb 2013
1. Using function handle :
>>f=@(x) (exp(-x)./x)-(exp(-(2+x))./(2+x))
2. Alternative using again Function Handle ;
>>f=@(x) (exp(-x)./x)-(exp(-(2+x))./(2+x))
>>fplot(f,[10 50])
3. Using M function in M file :
% Save the function in M file
function y=R(x)
% In the command prompt :
>>figure, plot(x,R(x))
4. Using Symbolic variables :
>>syms x
>>ezplot(f,[10 50])

Fernando Fernandes
Fernando Fernandes on 26 Nov 2019
How could I plot a function of two variables r_d and t_d? I'd like to keep r_d constant and plot t_d.. after I want to keep t_d constant and plot r_d. The function is: q(r_d, t_d)=exp((-r_d)^2/(4*t_d))



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