module TensorStream::MathHelper

varoius utility functions for array processing

Public Instance Methods

sigmoid(val) click to toggle source

Calculates value of y = 1.0 / ( 1.0 + exp( -x ) )

# File lib/tensor_stream/evaluator/operation_helpers/math_helper.rb, line 5
def sigmoid(val)
  1 / (1 + Math.exp(-val))
end