Update doc/api/core/Math.rst

doc/api/core/Math.rst

 Math - Math utility functions
 -----------------------------
+    
+**function**::THREE.Math.clamp(*x*, *a*, *b*)
 
-.. js:class:: Math()
+Clamps the *x* to be between *a* and *b*
 
-    Math utility functions
-    
\ No newline at end of file
++-----------+-------+----------------------+
+| Parameter | Type  | Description          |
++===========+=======+======================+
+| *x*       | float | value to be clamped  |
++-----------+-------+----------------------+
+| *a*       | float | minimum value        |
++-----------+-------+----------------------+
+| *b*       | float | maximum value        |
++-----------+-------+----------------------+
+| returns   | float | value after clamping |
++-----------+-------+----------------------+
+
+**function**::THREE.Math.clampBottom(*x*, *a*)
+
+Clamps the *x* to be larger than *a*
+
++-----------+-------+----------------------+
+| Parameter | Type  | Description          |
++===========+=======+======================+
+| *x*       | float | value to be clamped  |
++-----------+-------+----------------------+
+| *a*       | float | minimum value        |
++-----------+-------+----------------------+
+| returns   | float | value after clamping |
++-----------+-------+----------------------+
+
+**function**::THREE.Math.mapLinear(*x*, *a1*, *a2*, *b1*, *b2*)
+
+//todo
+ 
+**function**::THREE.Math.random16() 
+
++-----------+-------+-----------------------------------------------------+
+| Parameter | Type  | Description                                         |
++===========+=======+=====================================================+
+| returns   | float | Random float from <0, 1> with 16 bits of randomness |
++-----------+-------+-----------------------------------------------------+
+(standard Math.random() creates repetitive patterns when applied over larger space)
+
+**function**::THREE.Math.randInt(*low*, *high*)
+
++-----------+---------+----------------------------------------------+
+| Parameter | Type    | Description                                  |
++===========+=========+==============================================+
+| returns   | integer | Random integer from *low* to *high* interval |
++-----------+---------+----------------------------------------------+
+
+**function**::THREE.Math.randFloat(*low*, *high*)
+
++-----------+-------+--------------------------------------------+
+| Parameter | Type  | Description                                |
++===========+=======+============================================+
+| returns   | float | Random float from *low* to *high* interval |
++-----------+-------+--------------------------------------------+
+
+**function**::THREE.Math.randFloatSpread(*range*)
+
++-----------+-------+---------------------------------------------------+
+| Parameter | Type  | Description                                       |
++===========+=======+===================================================+
+| returns   | float | Random float from -*range*/2 to *range*/2 interval|
++-----------+-------+---------------------------------------------------+