Why is this showing this undefined error for "^" input argument?

function output=bisection(a,b,fun,tol)

a=15

b=36

fun=@y^2-5*y+6

tol=.00002

end

Undefined operator '^' for input arguments of type 'function_handle'.

Error in bisection (line 9)

fun=@y^2-5*y+6

[Walter Roberson]

Why are you assigning a value to fun which was passed in as a parameter? Why are you assigning values to the other variables, all of which are expected to be passed in?

Answer 1

[Sindar]

fun=@(y) y.^2-5*y+6

is the syntax you want