LEFT
#define LEFT 1005
#define LEFT 1
#undef LEFT
#define LEFT 6
#define LEFT -.3955078125 /* left boundary for rat. approx */
#define LEFT (1.0 - (x0 + .25))
#define LEFT -.3955078125 /* left boundary for rat. approx */
#define LEFT 2
#define LEFT 2
#define LEFT(i) ((i << 1) + 1)