Computational Experience in Solving a Large and Sparse System of Nonlinear Equations in 100,001 Variables

Jsun Yui Wong

The computer program listed below seeks to solve the instance of n=100,001 of the following problem from Reference 74:      

            X(i) * X(i + 1) – 1=0,         i=1, 2, 3,…, n-1,

            X(n) * X(1) – 1=0,             for odd n.

0 DEFDBL A-Z

1 REM          DEFINT K

2 DIM B(99), N(99), A(100010), H(99), L(99), U(99), X(100010), D(111), P(111), PS(33), J44(2002), J(99), AA(99), HR(32), HHR(32), LHS(44), PLHS(44), LB(22), UB(22), PX(22), CC(20), RR(20), WW(20), AL(50), SW(50), SV(50), C2(22), C3(22), C4(22), C5(22)

81 FOR JJJJ = -32000 TO 32000

    83 RANDOMIZE JJJJ

    87 M = -4E+299

    120 FOR J44 = 1 TO 100001

        121 A(J44) = 1 + FIX(RND * 6)

        122 REM     A(J44) = (RND)

    123 NEXT J44

    128 FOR I = 0 TO FIX(RND * 350000)

        129 FOR KKQQ = 1 TO 100001

            130 X(KKQQ) = A(KKQQ)

        131 NEXT KKQQ

        135 FOR IPP = 1 TO FIX(1 + RND * 10)

            143 J = 1 + FIX(RND * 100001.5)

            153 REM

            154 IF RND < .5 THEN GOTO 156 ELSE GOTO 162

            156 REM

            157 R = (1 – RND * 2) * (A(J))

            160 X(J) = A(J) + (RND ^ (RND * 30)) * R

            161 GOTO 169

            162 REM     IF RND < .16666 THEN X(J) = A(J) – FIX(1 + RND * 2.3) ELSE IF RND < .33333 THEN X(J) = A(J) + FIX(1 + RND * 2.3) ELSE IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * 20.3) ELSE IF RND < .66666 THEN X(J) = A(J) + FIX(1 + RND * 20.3) ELSE IF RND < .83333 THEN X(J) = A(J) – FIX(1 + RND * 200.3) ELSE X(J) = A(J) + FIX(1 + RND * 200.3)

            163 IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * .3) ELSE X(J) = A(J) + FIX(1 + RND * .3)

        169 NEXT IPP

        170 FOR J44 = 1 TO 100001

            171 REM X(J44) = INT(X(J44))

            172 IF X(J44) < .01## THEN 1670

        173 NEXT J44

        194 FOR J44 = 1 TO 100000

            197 X(J44 + 1) = 1 / X(J44)

        199 NEXT J44

        1151 SUMM = 0

        1154 FOR J44 = 1 TO 100000

            1157 SUMM = SUMM – ABS(X(J44) * X(J44 + 1) – 1)

        1159 NEXT J44

        1166 SUMMM = SUMM – ABS(X(100001) * X(1) – 1)

        1169 P = SUMMM

        1351 IF P <= M THEN 1670

        1420 M = P

        1444 FOR KLX = 1 TO 100001

            1455 A(KLX) = X(KLX)

        1456 NEXT KLX

        1557 GOTO 128

    1670 NEXT I

    1688 IF M < -.1 THEN 1999

    1924 PRINT A(1), A(2), A(3), A(4), A(5)

    1925 PRINT A(5011), A(5012), A(5013), A(5014), A(5015)

    1928 PRINT A(6011), A(6012), A(6013), A(6014), A(6015)

    1929 PRINT A(8011), A(8012), A(8013), A(8014), A(8015)

    1933 PRINT A(21016), A(21017), A(21018), A(21019)

    1937 PRINT A(59998), A(99999), A(100000), A(100001), M, JJJJ

1999 NEXT JJJJ

This BASIC computer program was run with QB64v1000-win [119].  The output specified by line 1924 through line 1937 of a single run through

JJJJ= -31984 is shown below:

1   1  1   1   1

1   1  1   1   1

1   1  1   1   1

1   1  1   1   1

1   1   1   1

1   1   1   1         0

-31992

1   1  1   1   1

1   1  1   1   1

1   1  1   1   1

1   1  1   1   1

1   1   1   1

1   1   1    1         0

-31985

1.00000005396474            .9999999460352635           1.00000005396474

.9999999460352635          1.00000005396474

1.00000005396474            .9999999460352635           1.00000005396474

.9999999460352635          1.00000005396474

1.00000005396474            .9999999460352635           1.00000005396474

.9999999460352635          1.00000005396474

1.00000005396474            .9999999460352635           1.00000005396474

.9999999460352635          1.00000005396474

.9999999460352635          1.00000005396474              .9999999460352635

1.00000005396474

.9999999460352635          1.00000005396474              .9999999460352635

1.00000005396474           -1.079320403169458D-07      -31984

In accordance with line 1924 through 1937, only 28 values of the 100,001 values of the 100,001 variables are shown above.

Above there is no rounding by hand; it is just straight copying by hand from the monitor screen. On a personal computer with a Processor Intel (R) Core (TM) 2 Duo CPU E8400 @ 3.0 GHz  3.0 GHz, 4.00 GB of RAM (3.9 GB usable),  64-bit Operating System, and QB64v1000-win [119], the wall-clock time (not CPU time) for obtaining the output through  JJJJ  = -31984 was 6 hours.  

Acknowledgement

I would like to acknowledge the encouragement of Roberta Clark and Tom Clark.

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Solving a Nonlinear Programming Problem in 11019 Variables

Jsun Yui Wong

The computer program listed below seeks to solve the instance of n=11019 of the following problem from Montazeri, Soleymani, Shateyi, and Motsa [74, p. 11]:      

            X(i) * X(i + 1) – 1=0,         i=1, 2, 3,…, n-1,

            X(n) * X(1) – 1=0,             for odd n.

0 DEFDBL A-Z

1 DEFINT K

2 DIM B(99), N(99), A(11100), H(99), L(99), U(99), X(11100), D(111), P(111), PS(33), J44(2002), J(99), AA(99), HR(32), HHR(32), LHS(44), PLHS(44), LB(22), UB(22), PX(22), CC(20), RR(20), WW(20), AL(50), SW(50), SV(50), C2(22), C3(22), C4(22), C5(22)

81 FOR JJJJ = -32000 TO 32000

    83 RANDOMIZE JJJJ

    87 M = -4E+299

    120 FOR J44 = 1 TO 11019

        121 A(J44) = 1 + FIX(RND * 6)

        122 REM     A(J44) = (RND)

    123 NEXT J44

    128 FOR I = 0 TO FIX(RND * 300000)

        129 FOR KKQQ = 1 TO 11019

            130 X(KKQQ) = A(KKQQ)

        131 NEXT KKQQ

        135 FOR IPP = 1 TO FIX(1 + RND * 10)

            143 J = 1 + FIX(RND * 11019.5)

            154 IF RND < .5 THEN GOTO 156 ELSE GOTO 162

            156 REM

            157 R = (1 – RND * 2) * (A(J))

            160 X(J) = A(J) + (RND ^ (RND * 30)) * R

            161 GOTO 169

            162 REM     IF RND < .16666 THEN X(J) = A(J) – FIX(1 + RND * 2.3) ELSE IF RND < .33333 THEN X(J) = A(J) + FIX(1 + RND * 2.3) ELSE IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * 20.3) ELSE IF RND < .66666 THEN X(J) = A(J) + FIX(1 + RND * 20.3) ELSE IF RND < .83333 THEN X(J) = A(J) – FIX(1 + RND * 200.3) ELSE X(J) = A(J) + FIX(1 + RND * 200.3)

            163 IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * .3) ELSE X(J) = A(J) + FIX(1 + RND * .3)

        169 NEXT IPP

        170 FOR J44 = 1 TO 11019

            171 REM     X(J44) = INT(X(J44))

            172 IF X(J44) < .01## THEN 1670

        173 NEXT J44

        194 FOR J44 = 1 TO 11018

            197 X(J44 + 1) = 1 / X(J44)

        199 NEXT J44

        1151 SUMM = 0

        1154 FOR J44 = 1 TO 11018

            1157 SUMM = SUMM – ABS(X(J44) * X(J44 + 1) – 1)

        1159 NEXT J44

        1166 SUMMM = SUMM – ABS(X(11019) * X(1) – 1)

        1169 P = SUMMM

        1351 IF P <= M THEN 1670

        1420 M = P

        1444 FOR KLX = 1 TO 11019

            1455 A(KLX) = X(KLX)

        1456 NEXT KLX

        1557 GOTO 128

    1670 NEXT I

    1688 IF M < -.0000001 THEN 1999

    1924 PRINT A(1), A(2), A(3), A(4), A(5)

    1925 PRINT A(5011), A(5012), A(5013), A(5014), A(5015)

    1928 PRINT A(6011), A(6012), A(6013), A(6014), A(6015)

    1929 PRINT A(8011), A(8012), A(8013), A(8014), A(8015)

    1933 PRINT A(11016), A(11017), A(11018), A(11019), M, JJJJ

1999 NEXT JJJJ

This BASIC computer program was run with QB64v1000-win [119].  The output specified by line 1924 through line 1933 of a single run through

JJJJ= -31980 is shown below:

1.000000000000002         .9999999999999982            1.000000000000002

.9999999999999982         1.000000000000002

1.000000000000002         .9999999999999982            1.000000000000002

.9999999999999982         1.000000000000002

1.000000000000002         .9999999999999982            1.000000000000002

.9999999999999982         1.000000000000002

1.000000000000002         .9999999999999982            1.000000000000002

.9999999999999982         1.000000000000002

.9999999999999982         1.000000000000002            .9999999999999982  

1.000000000000002        -3.552713678800501D-15   -31998

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   0

-31997

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   0

-31982 

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   0

-31981

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   0

-31980

In accordance with line 1924 through 1933, only 24 values of the 11019  values of the variables are shown above.

Above there is no rounding by hand; it is just straight copying by hand from the monitor screen. On a personal computer with a Processor Intel (R) Core (TM) 2 Duo CPU E8400 @ 3.0 GHz  3.0 GHz, 4.00 GB of RAM (3.9 GB usable),  64-bit Operating System, and QB64v1000-win [119], the wall-clock time (not CPU time) for obtaining the output through  JJJJ  = -31980 was 66 minutes, counting from “Starting program…”.  

Acknowledgement

I would like to acknowledge the encouragement of Roberta Clark and Tom Clark.

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Solving a Nonlinear Programming Problem in 11019 Variables

Jsun Yui Wong

The computer program listed below seeks to solve the instance of n=11019 of the following problem from Montazeri, Soleymani, Shateyi, and Motsa [74, p. 11]:      

            X(i) * X(i + 1) – 1=0,         i=1, 2, 3,…, n-1,

            X(n) * X(1) – 1=0,             for odd n.

0 DEFDBL A-Z

1 DEFINT K

2 DIM B(99), N(99), A(11100), H(99), L(99), U(99), X(11100), D(111), P(111), PS(33), J44(2002), J(99), AA(99), HR(32), HHR(32), LHS(44), PLHS(44), LB(22), UB(22), PX(22), CC(20), RR(20), WW(20), AL(50), SW(50), SV(50), C2(22), C3(22), C4(22), C5(22)

81 FOR JJJJ = -32000 TO 32000

    83 RANDOMIZE JJJJ

    87 M = -4E+299

    120 FOR J44 = 1 TO 11019

        121 A(J44) = 1 + FIX(RND * 6)

        122 REM     A(J44) = (RND)

    123 NEXT J44

    128 FOR I = 0 TO FIX(RND * 300000)

        129 FOR KKQQ = 1 TO 11019

            130 X(KKQQ) = A(KKQQ)

        131 NEXT KKQQ

        135 FOR IPP = 1 TO FIX(1 + RND * 10)

            143 J = 1 + FIX(RND * 11019.5)

            154 IF RND < .5 THEN GOTO 156 ELSE GOTO 162

            156 REM

            157 R = (1 – RND * 2) * (A(J))

            160 X(J) = A(J) + (RND ^ (RND * 30)) * R

            161 GOTO 169

            162 REM     IF RND < .16666 THEN X(J) = A(J) – FIX(1 + RND * 2.3) ELSE IF RND < .33333 THEN X(J) = A(J) + FIX(1 + RND * 2.3) ELSE IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * 20.3) ELSE IF RND < .66666 THEN X(J) = A(J) + FIX(1 + RND * 20.3) ELSE IF RND < .83333 THEN X(J) = A(J) – FIX(1 + RND * 200.3) ELSE X(J) = A(J) + FIX(1 + RND * 200.3)

            163 IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * .3) ELSE X(J) = A(J) + FIX(1 + RND * .3)

        169 NEXT IPP

        170 FOR J44 = 1 TO 11019

            171 REM     X(J44) = INT(X(J44))

            172 IF X(J44) < .01## THEN 1670

        173 NEXT J44

        194 FOR J44 = 1 TO 11018

            197 X(J44 + 1) = 1 / X(J44)

        199 NEXT J44

        1151 SUMM = 0

        1154 FOR J44 = 1 TO 11018

            1157 SUMM = SUMM – ABS(X(J44) * X(J44 + 1) – 1)

        1159 NEXT J44

        1166 SUMMM = SUMM – ABS(X(11019) * X(1) – 1)

        1169 P = SUMMM

        1351 IF P <= M THEN 1670

        1420 M = P

        1444 FOR KLX = 1 TO 11019

            1455 A(KLX) = X(KLX)

        1456 NEXT KLX

        1557 GOTO 128

    1670 NEXT I

    1688 IF M < -.0000001 THEN 1999

    1924 PRINT A(1), A(2), A(3), A(4), A(5)

    1925 PRINT A(5011), A(5012), A(5013), A(5014), A(5015)

    1928 PRINT A(6011), A(6012), A(6013), A(6014), A(6015)

    1929 PRINT A(8011), A(8012), A(8013), A(8014), A(8015)

    1933 PRINT A(11016), A(11017), A(11018), A(11019), M, JJJJ

1999 NEXT JJJJ

This BASIC computer program was run with QB64v1000-win [119].  The output specified by line 1924 through line 1933 of a single run through

JJJJ= -31980 is shown below:

1.000000000000002         .9999999999999982            1.000000000000002

.9999999999999982         1.000000000000002

1.000000000000002         .9999999999999982            1.000000000000002

.9999999999999982         1.000000000000002

1.000000000000002         .9999999999999982            1.000000000000002

.9999999999999982         1.000000000000002

1.000000000000002         .9999999999999982            1.000000000000002

.9999999999999982         1.000000000000002

.9999999999999982         1.000000000000002            .9999999999999982  

1.000000000000002        -3.552713678800501D-15   -31998

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   0

-31997

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   0

-31982 

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   0

-31981

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   1

1   1   1   1   0

-31980

In accordance with line 1924 through 1933, only 24 values of the 11019  values of the variables are shown above.

Above there is no rounding by hand; it is just straight copying by hand from the monitor screen. On a personal computer with a Processor Intel (R) Core (TM) 2 Duo CPU E8400 @ 3.0 GHz  3.0 GHz, 4.00 GB of RAM (3.9 GB usable),  64-bit Operating System, and QB64v1000-win [119], the wall-clock time (not CPU time) for obtaining the output through  JJJJ  = -31980 was 66 minutes, counting from “Starting program…”.  

Acknowledgement

I would like to acknowledge the encouragement of Roberta Clark and Tom Clark.

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Solving a Nonlinear Programming Problem with 5099 Unknowns

Jsun Yui Wong

The computer program listed below seeks to solve the instance on n=5099 of the following problem from Montazeri et al. [74, p. 11]:      

            X(i) * X(i + 1) – 1=0,         i=1, 2, 3,…, n-1,

            X(n) * X(1) – 1=0,             for odd n.

0 DEFDBL A-Z

1 DEFINT K

2 DIM B(99), N(99), A(5100), H(99), L(99), U(99), X(5100), D(111), P(111), PS(33), J44(2002), J(99), AA(99), HR(32), HHR(32), LHS(44), PLHS(44), LB(22), UB(22), PX(22), CC(20), RR(20), WW(20), AL(50), SW(50), SV(50), C2(22), C3(22), C4(22), C5(22)

81 FOR JJJJ = -32000 TO 32000

    83 RANDOMIZE JJJJ

    87 M = -4E+299

    120 FOR J44 = 1 TO 5099

        121 A(J44) = 1 + FIX(RND * 6)

        122 REM     A(J44) = (RND)

    123 NEXT J44

    128 FOR I = 0 TO FIX(RND * 300000)

        129 FOR KKQQ = 1 TO 5099

            130 X(KKQQ) = A(KKQQ)

        131 NEXT KKQQ

        135 FOR IPP = 1 TO FIX(1 + RND * 10)

            143 J = 1 + FIX(RND * 5099.5)

            154 IF RND < .5 THEN GOTO 156 ELSE GOTO 162

            156 REM

            157 R = (1 – RND * 2) * (A(J))

            160 X(J) = A(J) + (RND ^ (RND * 30)) * R

            161 GOTO 169

            162 REM     IF RND < .16666 THEN X(J) = A(J) – FIX(1 + RND * 2.3) ELSE IF RND < .33333 THEN X(J) = A(J) + FIX(1 + RND * 2.3) ELSE IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * 20.3) ELSE IF RND < .66666 THEN X(J) = A(J) + FIX(1 + RND * 20.3) ELSE IF RND < .83333 THEN X(J) = A(J) – FIX(1 + RND * 200.3) ELSE X(J) = A(J) + FIX(1 + RND * 200.3)

            163 IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * .3) ELSE X(J) = A(J) + FIX(1 + RND * .3)

        169 NEXT IPP

        170 FOR J44 = 1 TO 5099

            172 IF X(J44) < .01## THEN 1670

        173 NEXT J44

        194 FOR J44 = 1 TO 5098

            197 X(J44 + 1) = 1 / X(J44)

        199 NEXT J44

        1151 SUMM = 0

        1154 FOR J44 = 1 TO 5098

            1157 SUMM = SUMM – ABS(X(J44) * X(J44 + 1) – 1)

        1159 NEXT J44

        1166 SUMMM = SUMM – ABS(X(5099) * X(1) – 1)

        1169 P = SUMMM

        1351 IF P <= M THEN 1670

        1420 M = P

        1444 FOR KLX = 1 TO 5099

            1455 A(KLX) = X(KLX)

        1456 NEXT KLX

        1557 GOTO 128

    1670 NEXT I

    1688 IF M < -.0000001 THEN 1999

    1924 PRINT A(1), A(2), A(3), A(4), A(5)

    1925 PRINT A(4111), A(4112), A(4113), A(4114), A(4115)

    1928 PRINT A(5096), A(5097), A(5098), A(5099), M, JJJJ

1999 NEXT JJJJ

This BASIC computer program was run with QB64v1000-win [119].  The output specified by line 1924 through line 1928 of a single run through

JJJJ= -31991 is shown below:

1  1  1  1  1

1  1  1  1  1 

1  1  1  1  0

-31998

1  1  1  1  1

1  1  1  1  1

1  1  1  1  0

-31997

1  1  1  1  1

1  1  1  1  1

1  1  1  1  0

-31996

In accordance with line 1924 through line 1928, only 14 of the 5099 values of the variables are shown above.

Above there is no rounding by hand; it is just straight copying by hand from the monitor screen. On a personal computer with a Processor Intel (R) Core (TM) 2 Duo CPU E8400 @ 3.0 GHz  3.0 GHz, 4.00 GB of RAM (3.9 GB usable),  64-bit Operating System, and QB64v1000-win [119], the wall-clock time (not CPU time) for obtaining the output through  JJJJ  = -31996 was 10 minutes, counting from “Starting program…”.  

Acknowledgement

I would like to acknowledge the encouragement of Roberta Clark and Tom Clark.

References

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[2] Siby Abraham, Sugata Sanyal, Mukund Sanglikar (2010), Particle Swarm Optimisation Based Diophantine Equation Solver,  Int. J. of Bio-Inspired Computation, 2 (2), 100-114, 2010.  

Acknowledgement

I would like to acknowledge the encouragement of Roberta Clark and Tom Clark.

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The computer program listed below seeks to solve the instance on n=5099 of the following problem from Montazeri et al. [74, p. 11]:      

            X(i) * X(i + 1) – 1=0,         i=1, 2, 3,…, n-1,

            X(n) * X(1) – 1=0,             for odd n.

0 DEFDBL A-Z

1 DEFINT K

2 DIM B(99), N(99), A(5100), H(99), L(99), U(99), X(5100), D(111), P(111), PS(33), J44(2002), J(99), AA(99), HR(32), HHR(32), LHS(44), PLHS(44), LB(22), UB(22), PX(22), CC(20), RR(20), WW(20), AL(50), SW(50), SV(50), C2(22), C3(22), C4(22), C5(22)

81 FOR JJJJ = -32000 TO 32000

    83 RANDOMIZE JJJJ

    87 M = -4E+299

    120 FOR J44 = 1 TO 5099

        121 A(J44) = 1 + FIX(RND * 6)

        122 REM     A(J44) = (RND)

    123 NEXT J44

    128 FOR I = 0 TO FIX(RND * 300000)

        129 FOR KKQQ = 1 TO 5099

            130 X(KKQQ) = A(KKQQ)

        131 NEXT KKQQ

        135 FOR IPP = 1 TO FIX(1 + RND * 10)

            143 J = 1 + FIX(RND * 5099.5)

            154 IF RND < .5 THEN GOTO 156 ELSE GOTO 162

            156 REM

            157 R = (1 – RND * 2) * (A(J))

            160 X(J) = A(J) + (RND ^ (RND * 30)) * R

            161 GOTO 169

            162 REM     IF RND < .16666 THEN X(J) = A(J) – FIX(1 + RND * 2.3) ELSE IF RND < .33333 THEN X(J) = A(J) + FIX(1 + RND * 2.3) ELSE IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * 20.3) ELSE IF RND < .66666 THEN X(J) = A(J) + FIX(1 + RND * 20.3) ELSE IF RND < .83333 THEN X(J) = A(J) – FIX(1 + RND * 200.3) ELSE X(J) = A(J) + FIX(1 + RND * 200.3)

            163 IF RND < .5 THEN X(J) = A(J) – FIX(1 + RND * .3) ELSE X(J) = A(J) + FIX(1 + RND * .3)

        169 NEXT IPP

        170 FOR J44 = 1 TO 5099

            172 IF X(J44) < .01## THEN 1670

        173 NEXT J44

        194 FOR J44 = 1 TO 5098

            197 X(J44 + 1) = 1 / X(J44)

        199 NEXT J44

        1151 SUMM = 0

        1154 FOR J44 = 1 TO 5098

            1157 SUMM = SUMM – ABS(X(J44) * X(J44 + 1) – 1)

        1159 NEXT J44

        1166 SUMMM = SUMM – ABS(X(5099) * X(1) – 1)

        1169 P = SUMMM

        1351 IF P <= M THEN 1670

        1420 M = P

        1444 FOR KLX = 1 TO 5099

            1455 A(KLX) = X(KLX)

        1456 NEXT KLX

        1557 GOTO 128

    1670 NEXT I

    1688 IF M < -.0000001 THEN 1999

    1924 PRINT A(1), A(2), A(3), A(4), A(5)

    1925 PRINT A(4111), A(4112), A(4113), A(4114), A(4115)

    1928 PRINT A(5096), A(5097), A(5098), A(5099), M, JJJJ

1999 NEXT JJJJ

This BASIC computer program was run with QB64v1000-win [119].  The output specified by line 1924 through line 1928 of a single run through

JJJJ= -31991 is shown below:

1  1  1  1  1

1  1  1  1  1 

1  1  1  1  0

-31998

1  1  1  1  1

1  1  1  1  1

1  1  1  1  0

-31997

1  1  1  1  1

1  1  1  1  1

1  1  1  1  0

-31996

In accordance with line 1924 through line 1928, only 14 of the 5099 values of the variables are shown above.

Above there is no rounding by hand; it is just straight copying by hand from the monitor screen. On a personal computer with a Processor Intel (R) Core (TM) 2 Duo CPU E8400 @ 3.0 GHz  3.0 GHz, 4.00 GB of RAM (3.9 GB usable),  64-bit Operating System, and QB64v1000-win [119], the wall-clock time (not CPU time) for obtaining the output through  JJJJ  = -31996 was 10 minutes, counting from “Starting program…”.  

Acknowledgement

I would like to acknowledge the encouragement of Roberta Clark and Tom Clark.

References

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Acknowledgement

I would like to acknowledge the encouragement of Roberta Clark and Tom Clark.

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