﻿INVESTMENT 
  ANALYSIS 
  PROGRAM 
  

   NO. 
  2 
  

  

  CDC-3100 
  VERSION 
  OF 
  CLARK 
  ROW'S 
  

   INVESTMENT 
  ANALYSIS 
  PROGRAM' 
  

  

  This 
  program 
  is 
  essentially 
  the 
  one 
  pub- 
  

   lished 
  in 
  Agriculture 
  Handbook 
  304, 
  "A 
  guide 
  

   for 
  evaluating 
  reforestation 
  and 
  timber 
  stand 
  

   improvement 
  projects 
  by 
  Marty, 
  et 
  al. 
  It 
  

   has 
  been 
  modified 
  for 
  use 
  on 
  the 
  CDC-3100 
  

   computer. 
  The 
  dimension 
  of 
  the 
  program 
  was 
  

   cut 
  to 
  fit 
  60K 
  storage. 
  Also 
  some 
  statements 
  

   were 
  made 
  consistent 
  with 
  CDC-3100 
  lan- 
  

   guage. 
  

  

  Two 
  features 
  were 
  added 
  to 
  the 
  program 
  

   in 
  the 
  process 
  of 
  revision: 
  

  

  1. 
  The 
  input 
  was 
  modified 
  to 
  include 
  the 
  

   name 
  and 
  address 
  of 
  the 
  user. 
  The 
  first 
  three 
  

   input 
  cards 
  are 
  used 
  for 
  this 
  purpose. 
  This 
  

   was 
  done 
  simply 
  to 
  facilitate 
  handling 
  of 
  both 
  

   input 
  and 
  output. 
  

  

  2. 
  Control 
  cards 
  5, 
  6, 
  and 
  7 
  are 
  now 
  

   printed 
  out 
  with 
  labels 
  to 
  facilitate 
  the 
  check- 
  

   ing 
  of 
  input 
  should 
  problems 
  arise. 
  Note 
  that 
  

   the 
  only 
  optional 
  card 
  in 
  the 
  input 
  is 
  card 
  13. 
  

   It 
  is 
  required 
  whenever 
  NX 
  on 
  card 
  6 
  is 
  coded 
  

   02. 
  Note 
  also 
  that 
  JX, 
  MX, 
  and 
  NX 
  on 
  con- 
  

   trol 
  card 
  6 
  must 
  always 
  be 
  "01" 
  or 
  larger. 
  

  

  Output 
  options. 
  — 
  The 
  program 
  computes 
  

  

  1. 
  internal 
  rate 
  of 
  return 
  

  

  2. 
  present 
  worth. 
  

  

  Either 
  or 
  both 
  can 
  be 
  obtained 
  — 
  note 
  

   "program 
  options" 
  columns 
  13-14 
  on 
  control 
  

   card 
  5. 
  

  

  ,J 
  In 
  Marty, 
  et 
  al. 
  See 
  footnote 
  4. 
  

  

  INSTRUCTIONS 
  FOR 
  PREPARING 
  CONTROL 
  CARDS 
  

  

  Card 
  Columns 
  ITEM 
  Field 
  Label 
  

  

  1 
  

  

  2 
  

   3 
  

   4 
  

   5 
  

  

  1-20 
  Name 
  of 
  Forest 
  

  

  1-20 
  Name 
  of 
  unit 
  

  

  1-20 
  Name 
  of 
  user 
  

  

  1-80 
  Number 
  and/or 
  name 
  of 
  problem 
  

  

  1-4 
  Minimum 
  rate 
  of 
  interest 
  

   5-8 
  Interest 
  rate 
  increment 
  

   9-12 
  Maximum 
  rate 
  of 
  interest 
  

   13-14 
  Program 
  options 
  

  

  00 
  = 
  Interest 
  rate 
  only 
  

  

  01 
  = 
  Present 
  worth 
  and 
  interest 
  rate 
  

  

  02 
  = 
  Present 
  worth 
  only 
  

  

  1-2 
  Type 
  of 
  alternatives 
  

  

  01 
  = 
  Rotation 
  

  

  02 
  = 
  Site 
  index 
  

  

  03 
  = 
  Production 
  system 
  

  

  .XXX 
  

   .XXX 
  

   .XXX 
  

   XX 
  

  

  Name 
  

   Name 
  

   Name 
  

   Name 
  

   RINT 
  

  

  IOUT 
  

  

  XX 
  LZ 
  

  

  31 
  

  

  