There is an issue here. I tried different things to force the output to be positive and in range but for all of them I am getting a very small value close to zero for the output.(methods make the output positive and since it is close to zero it is in range ). It seems that there is something forcing the output toward negative values and with the used method it gets just zero.While I know that the correct value should be a value in range 0 and 0.5(output should linearly change with input).