I'm trying to call a method in a class during its initialize method. Is this not allowed? I originally had the method outside of the class to try and use it as a global method. The current method is trying to return the created matrix and then the initialize method saves the returned matrix into an instance variable.
class Member def setMatrix(a, i, l) puts "here" m = Matrix.zero(6) m[0,0] = a*l**2/i m[0,3] = -a*l**2/i m[1,1] = 12 m[1,2] = 6*l m[1,4] = -12 m[1,5] = 6*l m[2,1] = 6*l m[2,2] = 4*l**2 m[2,4] = -6*l m[2,5] = 2*l**2 m[3,0] = -a*l**2/i m[3,3] = a*l**2/i m[4,1] = -12 m[4,2] = -6*l m[4,4] = 12 m[4,5] = -6*l m[5,1] = 6*l m[5,2] = 2*l**2 m[5,4] = -6*l m[5,5] = 4*l**2 return m #@k = m end def initialize(a, i, l) @area = a @i = i @length = l @k = setMatrix(a, i, l) end end
Doing this returns this error
`'setMatrix': private method '=' called for #<Matrix:0x00000001186e00> (NoMethodError) from truss_solver.rb:71:in 'initialize' from truss_solver.rb:86:in 'new' from truss_solver.rb:86:in 'block in <main>' from truss_solver.rb:85:in 'each' from truss_solver.rb:85:in '<main>'`
I would like it to make an instance variable of a matrix when the class is instantiated. I've also tried to have the setMatrix method save the matrix to @k directly instead of returning the matrix and that gave a similar error. How else can I do to achieve what I want?