| --TEST-- | |
| gmp_binomial(): Binomial coefficients | |
| --EXTENSIONS-- | |
| gmp | |
| --FILE-- | |
| var_dump(gmp_binomial(10, 5)); | |
| var_dump(gmp_binomial("10", 5)); | |
| $n = gmp_init(10); | |
| var_dump(gmp_binomial($n, 5)); | |
| var_dump(gmp_binomial(10000, 100)); | |
| var_dump(gmp_binomial(0, 0)); | |
| var_dump(gmp_binomial(0, 1)); | |
| var_dump(gmp_binomial(1, 0)); | |
| var_dump(gmp_binomial(1, 1)); | |
| var_dump(gmp_binomial(-1, 5)); // == -(1 + 5 - 1 over 5) | |
| var_dump(gmp_binomial(-2, 6)); // == (2 + 6 - 1 over 6) | |
| try { | |
| var_dump(gmp_binomial(5, -2)); | |
| } catch (\ValueError $e) { | |
| echo $e->getMessage() . \PHP_EOL; | |
| } | |
| --EXPECT-- | |
| object(GMP)#1 (1) { | |
| ["num"]=> | |
| string(3) "252" | |
| } | |
| object(GMP)#1 (1) { | |
| ["num"]=> | |
| string(3) "252" | |
| } | |
| object(GMP)#2 (1) { | |
| ["num"]=> | |
| string(3) "252" | |
| } | |
| object(GMP)#2 (1) { | |
| ["num"]=> | |
| string(242) "65208469245472575695415972927215718683781335425416743372210247172869206520770178988927510291340552990847853030615947098118282371982392705479271195296127415562705948429404753632271959046657595132854990606768967505457396473467998111950929802400" | |
| } | |
| object(GMP)#2 (1) { | |
| ["num"]=> | |
| string(1) "1" | |
| } | |
| object(GMP)#2 (1) { | |
| ["num"]=> | |
| string(1) "0" | |
| } | |
| object(GMP)#2 (1) { | |
| ["num"]=> | |
| string(1) "1" | |
| } | |
| object(GMP)#2 (1) { | |
| ["num"]=> | |
| string(1) "1" | |
| } | |
| object(GMP)#2 (1) { | |
| ["num"]=> | |
| string(2) "-1" | |
| } | |
| object(GMP)#2 (1) { | |
| ["num"]=> | |
| string(1) "7" | |
| } | |
| gmp_binomial(): Argument #2 ($k) must be greater than or equal to 0 | |