Trapz method doesnt work
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Hello i have problem with trapz method. I wrote a very easy code but i have an error with it. I would be very gratefull if someone find a reason of this madness.
clear all
clc
X =[1:10];
Y = X.^2;
a=trapz(X,Y);
disp(a)
回答（1 个）
Star Strider
2015-2-1
You code runs for me without error.
In the Command Window, type:
which trapz -all
My guess is that the first line will be:
trapz is a variable.
In that situation, you will need to rename whatever your current ‘trapz’ variable is so the trapz function will work correctly.
4 个评论
Star Strider
2015-2-1
Kamil Tkacz’s ‘Answer’ moved here ...
>> which trapz -all
C:\Users\Gab\Desktop\trapz.m
C:\Program Files\MATLAB\R2013a\toolbox\matlab\datafun\trapz.m % Shadowed
Star Strider
2015-2-1
That is essentially the same message. ‘Shadowed’ means that you have another function or variable somewhere called ‘trapz’.
You need to find that other function or variable named ‘trapz’ and rename it to something other than a MATLAB built-in function name. Then the trapz function will work as it should.
Kamil Tkacz
2015-2-1
Star Strider
2015-2-1
My pleasure!
The most sincere expression of appreciation here on MATALB Answers is to Accept the Answer that most closely solves you problem.
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