| VF_sintab2 | VD_sintab2 | VE_sintab2 |
| VF_sintab3 | VD_sintab3 | VE_sintab3 |
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| | Table of sine values for arguments between 0 and p/2 |
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| Syntax C/C++ | #include <xmath.h>
extern float VF_sintab2[ VF_tabsz2+1 ];
extern double VD_sintab2[ VD_tabsz2+1 ];
extern extended VE_sintab2[ VE_tabsz2+1 ];
extern float VF_sintab3[ VF_tabsz3+1 ];
extern double VD_sintab3[ VD_tabsz3+1 ];
extern extended VE_sintab3[ VE_tabsz3+1 ];
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| Pascal/Delphi | uses FSINTAB2, DSINTAB2, ESINTAB2,
FSINTAB3, DSINTAB3, ESINTAB3;
VF_sintab2: array[0..VF_tabsz2] of Single;
VD_sintab2: array[0..VD_tabsz2] of Double;
VE_sintab2: array[0..VE_tabsz2] of Extended;
VF_sintab3: array[0..VF_tabsz3] of Single;
VD_sintab3: array[0..VD_tabsz3] of Double;
VE_sintab3: array[0..VE_tabsz3] of Extended;
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| Description | VF_sintab2[ i ] = sin( i/(2*VF_tabsz2) * p ), i=0,...,VF_tabsz2
VF_sintab3[ i ] = sin( i/(2*VF_tabsz3) * p ), i=0,...,VF_tabsz3
These look-up tables of sine values for arguments between 0 and p/2 are used by VF_sinrpi2 and the other functions of that family and are also available for other purposes.
C/C++: The symbols VF_tabsz2 etc., denoting the size of the tables, are defined in <xmath.h>.
Pascal/Delphi: The symbols VF_tabsz2 etc. are defined in the same units as the tables themselves.
FreePascal/Lazarus: These tables are not available for FreePascal/Lazarus. |
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