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