17const double MathNumbers::pi_d = 4.0 * atan(1.0);
18const double MathNumbers::ln2_d = log(2.0);
19const double MathNumbers::rad_2_deg_d = 180.0 / MathNumbers::pi_d;
20const double MathNumbers::deg_2_rad_d = MathNumbers::pi_d / 180.0;
22const float MathNumbers::pi_f = 4.0 * atan(1.0);
23const float MathNumbers::ln2_f = log(2.0);
24const float MathNumbers::rad_2_deg_f = 180.0 / MathNumbers::pi_d;
25const float MathNumbers::deg_2_rad_f = MathNumbers::pi_d / 180.0;
27const PN_stdfloat MathNumbers::pi = 4.0 * atan(1.0);
28const PN_stdfloat MathNumbers::ln2 = log(2.0);
29const PN_stdfloat MathNumbers::rad_2_deg = 180.0 / MathNumbers::pi_d;
30const PN_stdfloat MathNumbers::deg_2_rad = MathNumbers::pi_d / 180.0;
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