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Text File  |  1989-06-01  |  8KB  |  145 lines
  1.                                   - 1 -
  2. 5th January, 1989
  3.  
  4. About TSFIMAxx in General
  5. =========================
  6.  
  7. This package may be used and distributed freely for NON-COMMERCIAL,
  8. NON-INSTITUTIONAL, PRIVATE purposes, provided it is not changed in any way.
  9. For ANY other usage contact the author. No part of this package may be
  10. distributed separately.
  11.  
  12. The programs are under development. Comments and contacts are welcome. If you
  13. have any comments, please do not hesitate to use electronic mail for
  14. communication.
  15. InterNet address: ts@chyde.uwasa.fi         (preferred)
  16. Funet address:    VAKK::SALMI
  17. Bitnet address:   SALMI@FINFUN
  18. FidoNet address:  2:515/1 (Micro Maniacs Opus, To: Timo Salmi)
  19.  
  20. The author shall not be liable to the user for any direct, indirect or
  21. consequential loss arising from the use of, or inability to use, any program
  22. or file howsoever caused. No warranty is given that the programs will work
  23. under all circumstances.
  24.  
  25. Timo Salmi
  26. Professor of Accounting and Business Finance
  27. School of Business Studies, University of Vaasa
  28. P.O. BOX 297, SF-65101 Vaasa, Finland
  29.  
  30.  
  31. 1. SUMMARY:
  32.  
  33. Searching Archive: TSFIMA12.ARC - Financial mathematics by T.Salmi
  34.  
  35. Filename        Comment                             Date      Time
  36. --------        --------------------------------    ----      ----
  37. ANNT.EXE        Tableau of annuity factors        01-04-89  16:39:18
  38. IRR.EXE         Solves internal rate of return    01-05-89  09:06:40
  39. IRSR.EXE        Multiple internal rates of ret.   01-05-89  09:51:02
  40. LAINA.EXE       Loan amortization, Bilingual      11-03-88  16:06:28
  41. NPV.EXE         Investment's net present value    01-05-89  09:05:42
  42. PVT.EXE         Tableau of present values         01-04-89  16:37:16
  43. TSFIMA.INF      Document                          01-04-89  17:13:00
  44. TSPROG.INF      List of PD programs from T.Salmi  12-19-88  14:32:02
  45.  
  46.                                   - 2 -
  47.  
  48. 2. THE PROGRAMS
  49.  
  50. ANNuity Tableau
  51. ===============
  52.                                                                              
  53. Usage: ANNT {number of periods} {initial percentage} {step}                  
  54.    or: ANNT ?                                                                
  55.                                                                              
  56. Calculates the standard tableau of the present values of an annuity of 1.0.  
  57. E.g ANNT 10 1 2 outputs the tableau for ten years starting from 1.00% using  
  58. 2.00% increments.                                                            
  59.                                                                              
  60. The well-known formula is ann = q(1-q^n)/(1-q) where q = 1/(1+r/100) and r is
  61. the interest rate and n is the number of annuities.
  62.  
  63. Release notes: Version 1.2 uses output trough BIOS. Hence it can be
  64. redirected e.g. ANNT 10 1 2 >table.txt
  65.  
  66.                           
  67. Internal Rate of Return
  68. =======================
  69.                                                                           
  70. Usage: IRR [optional input file name]                                     
  71.    or: IRR ?                                                              
  72.                                                                           
  73. This program solves the internal rate of return of an investment given
  74. the initial investment and the annual net cash inflows. The maximum number
  75. of periods is 100.
  76.                                                                           
  77. The input can be taken from a file or the keyboard.                       
  78. An example of the input:
  79.                                                                           
  80.  !Exclamation marks can be used for optional comments                     
  81.  100   !The initial outlay                                                
  82.   20   !First year net cash inflow                                        
  83.  120   !Second year net cash inflow                                       
  84.  END   !Marks the end of data
  85.  
  86.  
  87. Internal RateS of Return
  88. ========================
  89.                                                                                
  90. Usage: IRSR [optional input file name]                                         
  91.    or: IRSR ?                                                                  
  92.                                                                                
  93. This program solves the internal rates of return of an investment given the    
  94. initial investment and the annual net cash inflows. If there are more than     
  95. one real internal rate of return, this program solves them all. See any good   
  96. text-book on capital investments for the theory of multiple solutions of       
  97. the internal rate of return equation. The maximum number of periods is 30.
  98.  
  99.                            - 3 -
  100.  
  101.  
  102. Loan amortization in Finnish and English
  103. ========================================
  104.  
  105. LAINA.EXE: There are so many of these loan amortization programs around that
  106. I decided to publish it in Finnish for a change. Nevertheless, since this is
  107. going to international bulletin boards, as well, I later decided to make this
  108. program bilingual starting from version 1.2.
  109.  
  110.  
  111. Net Present Value
  112. =================
  113.                                                                              
  114. Usage: NPV [interest rate] [optional input file name]                        
  115.    or: NPV ?                                                                 
  116.                                                                              
  117. This program calculates the net present value of an investment given the     
  118. initial investment and the annual net cash inflows.                          
  119.                                                                              
  120. The input can be taken from a file or the keyboard.                          
  121. An example of the input:
  122.                                                                              
  123.  !Exclamation marks can be used for optional comments                        
  124.  100   !The initial outlay                                                   
  125.   20   !First year net cash inflow                                           
  126.  120   !Second year net cash inflow                                          
  127.  END   !Marks the end of data                                                
  128.                                                                              
  129. When the input is taken from a file, the interest rate must be given from the
  130. command line, e.g. NPV 10 d:\testdata.dat                                    
  131.  
  132.                                                        
  133. Present Value Tableau
  134. ======================
  135.                                                                               
  136. Usage: PVT {number of periods} {initial percentage} {step}                    
  137.    or: PVT ?                                                                  
  138.                                                                               
  139. Calculates the standard tableau of the present values of 1.0.                 
  140. E.g PVT 10 1 2 outputs the tableau for ten years starting from 1.00% using    
  141. 2.00% increments.                                                             
  142.                                                                               
  143. The well-known formula is pv = 1/(1+r/100)^t where r is the interest rate and 
  144. t is the year.                                                                
  145.