Solution of O.D.Es. - Mercury Library Programme R4440

Written by Dr Tony Gibbons, in February 1961.

Documentation 1.2Mb pdf

Coding sheets

This documentation comprises the source code of the subroutines used by the program.

Note that the links below are not yet (Dec 2013) active as I have still to edit and upload the scanned pages.

Chapter 90

  • R900 - main loop
  • R901 - reciprocal
  • R902 - division
  • R904 - exponential
  • R906 - sine and cosine
  • R912 - square root
  • R914 - logarithm
  • R920 - start and finish loop
  • R921 - start and finish polynomial
  • R922 - calculate derivatives
  • R923 - terminator
  • R930 - read directives ; p2
  • R931 - read to SAC

    Chapter 91

  • R932 - read and analyse ; p2

    Chapter 92

  • R933 - synthesis ; p2 ; p3 ; p4 ; p5 ; p6

    Chapter 93

  • R935 - "Sector 2"

    Chapter 99

  • R937 - read class definitions
  • R938 - read procedures ; p2
  • R939 - read to SAC

    Chapter 95

  • R940 - print details
  • R941 - read I.Cs. ; p2
  • R942 - read to SAC
  • R943 - count dashes
  • R944 - read letter -> code
  • R945 - plant code and test bracket
  • R946 - read to A, scale and list

    Chapter 89

  • R959 - misc. reports
  • R951 - print number
  • R952 - print letter
  • R953 - print FX/FL/SAC ; p2 ; modified version?

    Chapter 96

  • R950 - integration control
  • R954 - radius of convergence
  • R955 - analytic continuation
  • R956 - reset ; p2
  • R957 - calculate nullity and test ; p2

    Chapter 97

  • R970 - punch binary restart

    Chapter 98

  • R971 - amend cue list and integrate

    Miscellaneous printouts

    These appear to includechapter layout and tests of the mathematical routines. Scans are in this directory.

    There are also a set of what are described as `Z routines', something to which I can find no reference in the programming manual. These are only available as rather messy hand written pages and faded printouts. I have not yet tried to scan them.