jiangchengfeiyi-xiaochengxu/node_modules/mathjs/lib/esm/function/trigonometry/atan2.js
2025-01-02 11:13:50 +08:00

89 lines
2.6 KiB
JavaScript

import { factory } from '../../utils/factory.js';
import { createMatAlgo02xDS0 } from '../../type/matrix/utils/matAlgo02xDS0.js';
import { createMatAlgo03xDSf } from '../../type/matrix/utils/matAlgo03xDSf.js';
import { createMatAlgo09xS0Sf } from '../../type/matrix/utils/matAlgo09xS0Sf.js';
import { createMatAlgo11xS0s } from '../../type/matrix/utils/matAlgo11xS0s.js';
import { createMatAlgo12xSfs } from '../../type/matrix/utils/matAlgo12xSfs.js';
import { createMatrixAlgorithmSuite } from '../../type/matrix/utils/matrixAlgorithmSuite.js';
var name = 'atan2';
var dependencies = ['typed', 'matrix', 'equalScalar', 'BigNumber', 'DenseMatrix', 'concat'];
export var createAtan2 = /* #__PURE__ */factory(name, dependencies, _ref => {
var {
typed,
matrix,
equalScalar,
BigNumber,
DenseMatrix,
concat
} = _ref;
var matAlgo02xDS0 = createMatAlgo02xDS0({
typed,
equalScalar
});
var matAlgo03xDSf = createMatAlgo03xDSf({
typed
});
var matAlgo09xS0Sf = createMatAlgo09xS0Sf({
typed,
equalScalar
});
var matAlgo11xS0s = createMatAlgo11xS0s({
typed,
equalScalar
});
var matAlgo12xSfs = createMatAlgo12xSfs({
typed,
DenseMatrix
});
var matrixAlgorithmSuite = createMatrixAlgorithmSuite({
typed,
matrix,
concat
});
/**
* Calculate the inverse tangent function with two arguments, y/x.
* By providing two arguments, the right quadrant of the computed angle can be
* determined.
*
* For matrices, the function is evaluated element wise.
*
* Syntax:
*
* math.atan2(y, x)
*
* Examples:
*
* math.atan2(2, 2) / math.pi // returns number 0.25
*
* const angle = math.unit(60, 'deg') // returns Unit 60 deg
* const x = math.cos(angle)
* const y = math.sin(angle)
*
* math.atan(2) // returns number 1.1071487177940904
*
* See also:
*
* tan, atan, sin, cos
*
* @param {number | Array | Matrix} y Second dimension
* @param {number | Array | Matrix} x First dimension
* @return {number | Array | Matrix} Four-quadrant inverse tangent
*/
return typed(name, {
'number, number': Math.atan2,
// Complex numbers doesn't seem to have a reasonable implementation of
// atan2(). Even Matlab removed the support, after they only calculated
// the atan only on base of the real part of the numbers and ignored
// the imaginary.
'BigNumber, BigNumber': (y, x) => BigNumber.atan2(y, x)
}, matrixAlgorithmSuite({
scalar: 'number | BigNumber',
SS: matAlgo09xS0Sf,
DS: matAlgo03xDSf,
SD: matAlgo02xDS0,
Ss: matAlgo11xS0s,
sS: matAlgo12xSfs
}));
});