I have this function saved as element.m Whenever I call on it I say element(Hydrogen) I am trying to get it to display the name, symbol, atomic number, category, ... But it keeps saying Undefined function or variable 'Hydrogen' I don't understand why its doing this.
function [Name, Symbol, Atomic_Number, Category, Proton, Neutron, Electron]=element(e)
%Inputs: %e - 'Hydrogen' ; %Outputs: %Name %Symbol %Atomic_Number %Category %Proton %Neutron %Electron e=[Hydrogen Helium]
if e=='Hydrogen' Name='Hydrogen'; Symbol='H'; Atomic_Number='1'; Category='Nonmetal'; Proton='1'; Neutron=''; Electron='1'; elseif e==Helium Name='Helium' Symbol='H' Atomic_Number='1' Category='Noble Gas' Proton='4' Neutron='2' Electron='4'
The variable Hydrogene is not defined in your code, how Matlab will recognize it?
e = [Hydrogen Helium]
strcmp as previously suggested.
Make sure when you call the function it is of the form:
[a b c d e f g] = element('Hydrogen')
You need to define where the rest of the output arguments will be assigned since they are internal variables to the function.
It seems this was also mentioned but the input argument needs to be a string or else Matlab will look for a variable that doesn't exist.