std
1.83.0-nightly
(52fd99839 2024-10-10)
In std::
f64::
consts
std
::
f64
::
consts
Constant
FRAC_PI_2
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pub const FRAC_PI_2:
f64
= 1.57079632679489661923132169163975144_f64; // 1.5707963267948966f64
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π/2