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 input[1].new()

self.gradInput[2] = self.gradInput[2] or input[1].new()

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])

for i=#input+1, #self.gradInput do

self.gradInput[i] = nil

end

return self.gradInput

end