simple-squiggle

A restricted subset of Squiggle
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atan2.md (1111B)


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      2 
      3 # Function atan2
      4 
      5 Calculate the inverse tangent function with two arguments, y/x.
      6 By providing two arguments, the right quadrant of the computed angle can be
      7 determined.
      8 
      9 For matrices, the function is evaluated element wise.
     10 
     11 
     12 ## Syntax
     13 
     14 ```js
     15 math.atan2(y, x)
     16 ```
     17 
     18 ### Parameters
     19 
     20 Parameter | Type | Description
     21 --------- | ---- | -----------
     22 `y` | number &#124; Array &#124; Matrix | Second dimension
     23 `x` | number &#124; Array &#124; Matrix | First dimension
     24 
     25 ### Returns
     26 
     27 Type | Description
     28 ---- | -----------
     29 number &#124; Array &#124; Matrix | Four-quadrant inverse tangent
     30 
     31 
     32 ### Throws
     33 
     34 Type | Description
     35 ---- | -----------
     36 
     37 
     38 ## Examples
     39 
     40 ```js
     41 math.atan2(2, 2) / math.pi       // returns number 0.25
     42 
     43 const angle = math.unit(60, 'deg') // returns Unit 60 deg
     44 const x = math.cos(angle)
     45 const y = math.sin(angle)
     46 
     47 math.atan(2)             // returns Complex 1.5707963267948966 -1.3169578969248166 i
     48 ```
     49 
     50 
     51 ## See also
     52 
     53 [tan](tan.md),
     54 [atan](atan.md),
     55 [sin](sin.md),
     56 [cos](cos.md)