KM_C              484 ext/gd/libgd/gd_interpolation.c #define KM_P2 ((-18.0f + 12.0f * KM_B + 6.0f * KM_C) / 6.0f)
KM_C              485 ext/gd/libgd/gd_interpolation.c #define KM_P3 (( 12.0f - 9.0f  * KM_B - 6.0f * KM_C) / 6.0f)
KM_C              486 ext/gd/libgd/gd_interpolation.c #define KM_Q0 ((  8.0f * KM_B + 24.0f * KM_C) / 6.0f)
KM_C              487 ext/gd/libgd/gd_interpolation.c #define KM_Q1 ((-12.0f * KM_B - 48.0f * KM_C) / 6.0f)
KM_C              488 ext/gd/libgd/gd_interpolation.c #define KM_Q2 ((  6.0f * KM_B + 30.0f * KM_C) / 6.0f)
KM_C              489 ext/gd/libgd/gd_interpolation.c #define KM_Q3 (( -1.0f * KM_B -  6.0f * KM_C) / 6.0f)