i cant seem to write this function in matlab

조회 수: 13 (최근 30일)
Ahmad al-falahi
Ahmad al-falahi 2018년 4월 11일
답변: Steven Lord 2018년 4월 11일
https://uk.mathworks.com/matlabcentral/answers/uploaded_files/112623/dddddddddddddddddddddddddddddd.PNG im trying to write this function in matlab but i cant get it right. this is what im writing in matlab f=@(x)exp(-(x-6).^2)-(x.^2).*cos(x)/(x.^2)+1 what im i doing wrong
  댓글 수: 2
Adam
Adam 2018년 4월 11일
You need the last parenthesis outside of the +1
Ahmad al-falahi
Ahmad al-falahi 2018년 4월 11일
well i got a function handle, but when i plot it it looks nothing like it should, when i plot the function on an online site it does ot look like the plot i get in matlab

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답변 (2개)

Ahmad al-falahi
Ahmad al-falahi 2018년 4월 11일
this is the function

Steven Lord
Steven Lord 2018년 4월 11일
f=@(x)exp(-(x-6).^2)-(x.^2).*cos(x)/(x.^2)+1
Let's look at a piece of your anonymous function in isolation along with a variant of that piece.
f1 = @(x) cos(x)/(x.^2)+1
f2 = @(x) cos(x)/(x.^2+1)
[f1(2) f2(2)]
f1(2) and f2(2) are different values, so f1 and f2 are different functions. You probably want to use f2 for that piece of f, not f1. You probably also want to use ./ instead of / as that would allow you to specify an array for x, not just a scalar.

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