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local CDivTable, parent = torch.class('nn.CDivTable', 'nn.Module')
function CDivTable:__init()
parent.__init(self)
self.gradInput = {}
end
function CDivTable:updateOutput(input)
self.output:resizeAs(input[1]):copy(input[1])
self.output:cdiv(input[2])
return self.output
end
function CDivTable:updateGradInput(input, gradOutput)
self.gradInput[1] = self.gradInput[1] or torch.Tensor()
self.gradInput[2] = self.gradInput[2] or torch.Tensor()
self.gradInput[1]:resizeAs(input[1]):copy(gradOutput):cdiv(input[2])
self.gradInput[2]:resizeAs(input[2]):zero():addcdiv(-1,self.gradInput[1],input[2]):cmul(input[1])
return self.gradInput
end
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