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/zscilib-3.4.0/src/colorimetry/
Dconv.c12 #ifndef M_PI
13 #define M_PI (3.14159265358979323846) macro
927 a = a_1 >= 0.0 ? a_1 : a_1 + M_PI; in zsl_clr_conv_uv60_cct_ohno2011()