1 | import { factory } from '../../utils/factory';
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2 | import { deepMap } from '../../utils/collection';
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3 | var name = 'tan';
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4 | var dependencies = ['typed'];
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5 | export var createTan =
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6 | /* #__PURE__ */
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7 | factory(name, dependencies, function (_ref) {
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8 | var typed = _ref.typed;
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9 |
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10 | /**
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11 | * Calculate the tangent of a value. `tan(x)` is equal to `sin(x) / cos(x)`.
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12 | *
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13 | * For matrices, the function is evaluated element wise.
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14 | *
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15 | * Syntax:
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16 | *
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17 | * math.tan(x)
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18 | *
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19 | * Examples:
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20 | *
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21 | * math.tan(0.5) // returns number 0.5463024898437905
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22 | * math.sin(0.5) / math.cos(0.5) // returns number 0.5463024898437905
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23 | * math.tan(math.pi / 4) // returns number 1
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24 | * math.tan(math.unit(45, 'deg')) // returns number 1
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25 | *
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26 | * See also:
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27 | *
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28 | * atan, sin, cos
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29 | *
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30 | * @param {number | BigNumber | Complex | Unit | Array | Matrix} x Function input
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31 | * @return {number | BigNumber | Complex | Array | Matrix} Tangent of x
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32 | */
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33 | var tan = typed(name, {
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34 | number: Math.tan,
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35 | Complex: function Complex(x) {
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36 | return x.tan();
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37 | },
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38 | BigNumber: function BigNumber(x) {
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39 | return x.tan();
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40 | },
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41 | Unit: function Unit(x) {
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42 | if (!x.hasBase(x.constructor.BASE_UNITS.ANGLE)) {
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43 | throw new TypeError('Unit in function tan is no angle');
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44 | }
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45 |
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46 | return tan(x.value);
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47 | },
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48 | 'Array | Matrix': function ArrayMatrix(x) {
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49 | // deep map collection, skip zeros since tan(0) = 0
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50 | return deepMap(x, tan, true);
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51 | }
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52 | });
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53 | return tan;
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54 | }); |
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