lz_multiply
The product of two numbers.
long lz_multiply( CLZNumber* leftOperand, CLZNumber* rightOperand, CLZNumber* targetNumber = nullptr );The product is worked from the exact digits and rounded once, in the target's own rounding mode. Past the smallest products the digits are packed into limbs; long products are split Karatsuba's way, and in base ten the largest are taken by a number-theoretic transform.
Examples
| Call | Answer |
|---|---|
lz_multiply( 99999999999999999999, 99999999999999999999 ) | 9999999999999999999800000000000000000001 |
lz_multiply( 0.1, 0.1 ) | 0.01 |
lz_multiply( 1.5, 1.5 ) base 12 | 2.3 base 12 |
Each answer is what Addaptic printed for the call, at 36 places unless a setting is shown.
Returns
kNoError (0) when the answer is written. Otherwise an error code, with the answer flagged infinite or not-a-number; see Errors and flags.
See also
lz_squareThe number times itself.lz_divideThe quotient of two numbers, left over right.lzc_multiplyThe product of two complex numbers.