Class: Matrix

Inherits:
Object
  • Object
show all
Defined in:
lib/avsd.rb

Instance Method Summary collapse

Instance Method Details

#[]=(i, j, x) ⇒ Object 



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# File 'lib/avsd.rb', line 8

def []=(i, j, x)
@rows[i][j] = x
end

#flatten ⇒ Object 



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# File 'lib/avsd.rb', line 64

def flatten
  arr = []
  for col in 0..self.column_size - 1
    for row in 0..self.row_size - 1
      arr << self[col, row]
    end
  end
  arr
end

#flip ⇒ Object 



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# File 'lib/avsd.rb', line 52

def flip
  m = self.flatten.max + 1
  for col in 0..self.column_size - 1
    for row in 0..self.row_size - 1
      next if self[col, row] == 0
      self[col, row] -= m
      self[col, row] *= -1
    end
  end
  self
end

#fold ⇒ Object 



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# File 'lib/avsd.rb', line 12

def fold
  for col in 0..self.column_size - 1
    for row in col..self.row_size - 1
      sum = self[row, col] + self[col, row]
      self[row, col] = sum
      self[col, row] = sum
    end
  end
  self
end

#mirror_diagonal ⇒ Object 



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# File 'lib/avsd.rb', line 35

def mirror_diagonal
  self.fold
  for col in 0..self.column_size - 1
    for row in 0..self.row_size - 1
      self[col, row] /= 2.0
    end
  end
  self
end

#show ⇒ Object 



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# File 'lib/avsd.rb', line 23

def show
  puts [self.column_size, self.row_size].inspect
  for col in 0..self.column_size - 1
    for row in 0..self.row_size - 1
      print self[row, col] == nil ? "n" : self[row, col]
      print "  "
    end
    puts
  end
  self
end

#zero_diagonal ⇒ Object 



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# File 'lib/avsd.rb', line 45

def zero_diagonal
  for col in 0..self.column_size - 1
    self[col, col] = 0
  end
  self
end