#include <openbabel/obutil.h>
Square Root lookup table - given a distance squared returns distance.
◆ OBSqrtTbl() [1/2]
◆ OBSqrtTbl() [2/2]
| OBSqrtTbl |
( |
const double |
max, |
|
|
const double |
incr |
|
) |
| |
|
inline |
Create a square root table to handle up to the square root of max (e.g., if you want the square root of 144, supply 12 for max)
- Parameters
-
| max | The maximum square root stored in the lookup table |
| incr | The floating point resolution of the lookup table |
◆ ~OBSqrtTbl()
◆ Sqrt()
| double Sqrt |
( |
double |
d2 | ) |
const |
|
inline |
Fast square root calculation using a lookup table.
- Returns
- Square root of
d2
◆ Init()
| void Init |
( |
double |
max, |
|
|
double |
incr |
|
) |
| |
|
inline |
Initialize the square root lookup table.
- Parameters
-
| max | The maximum square root stored in the lookup table (e.g., if you want the square root of 144, supply 12 for max) |
| incr | The floating point resolution of the lookup table |
The documentation for this class was generated from the following file:
