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- // -------------------------------------------------------------------------------------
- // utils
- // -------------------------------------------------------------------------------------
- /**
- * The *greatest common divisor* of two values
- *
- * @since 2.0.0
- */
- export function gcd(E, field) {
- var zero = field.zero;
- var f = function (x, y) { return (E.equals(y, zero) ? x : f(y, field.mod(x, y))); };
- return f;
- }
- /**
- * The *least common multiple* of two values
- *
- * @since 2.0.0
- */
- export function lcm(E, F) {
- var zero = F.zero;
- var gcdSF = gcd(E, F);
- return function (x, y) { return (E.equals(x, zero) || E.equals(y, zero) ? zero : F.div(F.mul(x, y), gcdSF(x, y))); };
- }
- // -------------------------------------------------------------------------------------
- // deprecated
- // -------------------------------------------------------------------------------------
- /**
- * Use [`Field`](./number.ts.html#field) instead.
- *
- * @category zone of death
- * @since 2.0.0
- * @deprecated
- */
- export var fieldNumber = {
- add: function (x, y) { return x + y; },
- zero: 0,
- mul: function (x, y) { return x * y; },
- one: 1,
- sub: function (x, y) { return x - y; },
- degree: function (_) { return 1; },
- div: function (x, y) { return x / y; },
- mod: function (x, y) { return x % y; }
- };
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