im.js 1.5 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.createIm = void 0;
  6. var _factory = require("../../utils/factory.js");
  7. var _collection = require("../../utils/collection.js");
  8. var name = 'im';
  9. var dependencies = ['typed'];
  10. var createIm = /* #__PURE__ */(0, _factory.factory)(name, dependencies, function (_ref) {
  11. var typed = _ref.typed;
  12. /**
  13. * Get the imaginary part of a complex number.
  14. * For a complex number `a + bi`, the function returns `b`.
  15. *
  16. * For matrices, the function is evaluated element wise.
  17. *
  18. * Syntax:
  19. *
  20. * math.im(x)
  21. *
  22. * Examples:
  23. *
  24. * const a = math.complex(2, 3)
  25. * math.re(a) // returns number 2
  26. * math.im(a) // returns number 3
  27. *
  28. * math.re(math.complex('-5.2i')) // returns number -5.2
  29. * math.re(math.complex(2.4)) // returns number 0
  30. *
  31. * See also:
  32. *
  33. * re, conj, abs, arg
  34. *
  35. * @param {number | BigNumber | Complex | Array | Matrix} x
  36. * A complex number or array with complex numbers
  37. * @return {number | BigNumber | Array | Matrix} The imaginary part of x
  38. */
  39. return typed(name, {
  40. number: function number() {
  41. return 0;
  42. },
  43. 'BigNumber | Fraction': function BigNumberFraction(x) {
  44. return x.mul(0);
  45. },
  46. Complex: function Complex(x) {
  47. return x.im;
  48. },
  49. 'Array | Matrix': typed.referToSelf(function (self) {
  50. return function (x) {
  51. return (0, _collection.deepMap)(x, self);
  52. };
  53. })
  54. });
  55. });
  56. exports.createIm = createIm;