RosettaCodeData/Task/Long-multiplication/ALGOL-68/long-multiplication-1.alg
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2013-04-10 21:29:02 -07:00

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PRAGMAT precision=200 PRAGMAT
MODE INTEGER = LONG LONG INT;
LONG INT default integer width := 69;
INT width = 69+2;
INT fix w = 1, fix h = 1; # round up #
LONG LONG INT golden ratio w := ENTIER ((long long sqrt(5)-1) / 2 * LENG LENG 10 ** default integer width + fix w),
golden ratio h := ENTIER ((long long sqrt(5)+1) / 2 * LENG LENG 10 ** default integer width + fix h);
test: (
print((
"The approximate golden ratios, width: ", whole(golden ratio w,width), new line,
" length: ", whole(golden ratio h,width), new line,
" product is exactly: ", whole(golden ratio w*golden ratio h,width*2), new line));
INTEGER two to the power of 64 = LONG 2 ** 64;
INTEGER neg two to the power of 64 = -(LONG 2 ** 64);
print(("2 ** 64 * -(2 ** 64) = ", whole(two to the power of 64*neg two to the power of 64,width), new line))
)