Hello there.

I´m fairly new to maple, so i apologize if this is a rather "simple" question, but right now I don´t really know how to get rid of the error message that occurs.

What I try to do is define 3 components of (in this case) a function that describes a magnetic field. These functions ( seen below) depend on a few parameters (a,b,c,d,p and chi).

restart:
with(plots)

>
> PlotMfield := proc (a::float, b::float, c::float, d::float, p::float, chi::float)