M_PI 572 complex.c if (arg == M_PI) { M_PI 581 complex.c else if (arg == M_PI_2+M_PI) { M_PI 40 include/ruby/missing.h #ifndef M_PI M_PI 44 include/ruby/missing.h # define M_PI_2 (M_PI/2) M_PI 72 math.c return DBL2NUM(M_PI); M_PI 73 math.c return DBL2NUM(-M_PI); M_PI 79 math.c const double dz = (3.0 * M_PI / 4.0); M_PI 83 math.c const double dz = (M_PI / 4.0); M_PI 955 math.c #ifdef M_PI M_PI 957 math.c rb_define_const(rb_mMath, "PI", DBL2NUM(M_PI));