Paper tape, part of a collection of paper tape programs and sub-routines used for input to CSIRAC. This tape contains two sub-routines, each a self contained unit designed to carry out a specific task within a program.
This tape contains two subroutines for calculating the natural logaritm (to base e) of a number .
(A)` = log to base e(1+(A)) where 0 <= A <=1.
The first subroutine occupies three more store cells than the second but is three times more rapid.
Roll of CSIRAC 12 hole paper tape Tape is titled "CSIRAC LIBRARY T122 B101 Logarithm"