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annotate ply-3.8/example/BASIC/linear.bas @ 12254:616be78bd12e draft
<oerjan> revert
author | HackEso <hackeso@esolangs.org> |
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date | Fri, 06 Dec 2019 07:54:58 +0000 |
parents | 343ff337a19b |
children |
rev | line source |
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7267 | 1 1 REM ::: SOLVE A SYSTEM OF LINEAR EQUATIONS |
2 2 REM ::: A1*X1 + A2*X2 = B1 | |
3 3 REM ::: A3*X1 + A4*X2 = B2 | |
4 4 REM -------------------------------------- | |
5 10 READ A1, A2, A3, A4 | |
6 15 LET D = A1 * A4 - A3 * A2 | |
7 20 IF D = 0 THEN 65 | |
8 30 READ B1, B2 | |
9 37 LET X1 = (B1*A4 - B2*A2) / D | |
10 42 LET X2 = (A1*B2 - A3*B1) / D | |
11 55 PRINT X1, X2 | |
12 60 GOTO 30 | |
13 65 PRINT "NO UNIQUE SOLUTION" | |
14 70 DATA 1, 2, 4 | |
15 80 DATA 2, -7, 5 | |
16 85 DATA 1, 3, 4, -7 | |
17 90 END |