DP Tool Club 17/CD_ASCQ_17_101194.iso/vrac/fin312.zip/FINC3P2.EQU

Text File | 1993-02-28 | 2KB | 20 lines

"AST1CAL3 EQUATION VARIABLE |N 7 0N|","02-28-1993","18:25:51"
"COMMRATIO=SIGN(TERM#B/TERM#A)*EXP(LOG(ABS((TERM#B/TERM#A)))/(INDEX#B-INDEX#A)) TERM#1=TERM#A*COMMRATIO^(INDEX#A-1) TERM#2=TERM#1*COMMRATIO TERM#3=TERM#1*COMMRATIO^2 TERM#4=TERM#1*COMMRATIO^3 TERM#N=TERM#1*COMMRATIO^(N-1) SUM=TERM#1*(COMMRATIO^N-1)/(COMMRATIO-1)"
"GEOMETRIC PROGRESSION. A sequence of numbers in which any      number, or term, after the first can be obtained by multiplying its predecessor by a fixed number COMMRATIO.  Example 12, -24, 48, -64... or 27, 9, 3, 1...                                                                                     Ans(a) Set INDEX#A=1, INDEX#b=2, TERM#A=20, TERM#B=40, N=10. Value of 10th term is 10240. Sum of first 10 terms is 20460.                                                                                                                        Ans(b) Set INDEX#A=1, INDEX#B=2, TERM#A=8, TERM#B=-16, N=12. Sum of first 12    terms is -10920.                                                                                                                                               Type any key to exit.     (c) Copyright PCSCC, Inc., 1993                                                                                                                      ||(a) Find the 10th term and the sum of the first 10 terms of thegeometric progression 20, 40, 80, 160 ...                                                        (b) Find the sum of the first 12 terms of the geometric        progression 8, -16, 32, -64...                                                           Type comma key to see answers.  Type (F2) to return to helpfile."
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