Class: Chainer::Functions::Math::MulConstant

Inherits:

Chainer::FunctionNode

• Object
• Chainer::FunctionNode
• Chainer::Functions::Math::MulConstant

Defined in:

lib/chainer/functions/math/basic_math.rb

Instance Attribute Summary

Attributes inherited from Chainer::FunctionNode

#inputs, #outputs, #rank

Instance Method Summary

• #backward(indexes, gy) ⇒ Object
• #forward(x) ⇒ Object
• #initialize(value) ⇒ MulConstant constructor

  A new instance of MulConstant.

Methods inherited from Chainer::FunctionNode

#apply, #backward_accumulate, #forward_cpu, #get_retained_inputs, #get_retained_outputs, #label, #output_data, #retain_inputs, #retain_outputs, #unchain

Constructor Details

#initialize(value) ⇒ MulConstant

# File 'lib/chainer/functions/math/basic_math.rb', line 69

def initialize(value)
  @value = value
end

Instance Method Details

#backward(indexes, gy) ⇒ Object

# File 'lib/chainer/functions/math/basic_math.rb', line 77

def backward(indexes, gy)
  [gy[0] * @value]
end

#forward(x) ⇒ Object

# File 'lib/chainer/functions/math/basic_math.rb', line 73

def forward(x)
  [Utils::Array.force_array(@value * x[0])]
end