matlab give me error when i use fzero to calculate zero of function

fzero of function

fun = @sin; % function
x0 = 3; % initial point
x = fzero(fun,x0)

[Ameer Hamza]

What is the error? It runs fine.

fun = @sin; % function
x0 = 3; % initial point
x = fzero(fun,x0)

x =

       3.1416

[John D'Errico]

As is always the case, what error did you get? Show the ENTIRE text of the error, everything in red. This is always what you need to do, since by showing the complete error, we can usually infer what you did wrong.

In fact, what you have shown should be entirely reasonable code, probably taken directly from an example. That suggests that you have done something wrong. Perhaps putting the code into a script named fzero, as a novice user would often do when they want to play with something named fzero. But that is exactly the wrong thing to do. How can we know however?

[raffaele orlando]

Attempt to execute SCRIPT fzero as a function:

C:\Users\raffo\Documents\MATLAB\fzero.m

Error in Untitled2 (line 3)

x = fzero(fun,x0)

this is the error message , but if i use fsolve matlab give me a solution

[Ameer Hamza]

As John expected, you have placed a script name fzero in MATLAB's path ?‍♂️. Change the name of script C:\Users\raffo\Documents\MATLAB\fzero.m to something else.

[raffaele orlando]

sorry but how can i change the name of script ?

Answer 1

[madhan ravi]

Just go to the file location and rename the file as myFzero.m for example.