Data update
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7735 changed files with 38060 additions and 199180 deletions
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@ -1,13 +1,12 @@
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/*REXX program demonstrates handling an exception (negative #); catching is via a label.*/
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do j=9 by -5
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say 'the square root of ' j " is " sqrt(j)
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end /*j*/
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exit /*stick a fork in it, we're all done. */
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/*──────────────────────────────────────────────────────────────────────────────────────*/
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sqrt: procedure; parse arg x; if x=0 then return 0; d=digits(); h=d+6; m.=9
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numeric digits; numeric form; if x<0 then signal .sqrtNeg
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parse value format(x, 2, 1, , 0) 'E0' with g 'E' _ .; g=g * .5'e'_ % 2
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do j=0 while h>9; m.j=h; h=h%2 + 1; end /*j*/
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do k=j+5 to 0 by -1; numeric digits m.k; g=(g+x/g) * .5; end /*k*/
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numeric digits d; return g/1
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.sqrtNeg: say 'illegal SQRT argument (argument is negative):' x; exit 13
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-- 12 Sep 2025
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include Setting
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say 'EXCEPTIONS'
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say version
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say
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say 'Square root of 10 is' SqRt(10)/1
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say 'Square root of 0 is' SqRt(0)
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say 'Square root of -1 is' SqRt(-1)
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exit
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include Math
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