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quantum_package/src/Utils/constants.include.F

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integer, parameter :: max_dim = 511
integer, parameter :: SIMD_vector = 32
double precision, parameter :: pi = dacos(-1.d0)
double precision, parameter :: sqpi = dsqrt(dacos(-1.d0))
double precision, parameter :: pi_5_2 = 34.9868366552d0
double precision, parameter :: dfour_pi = 4.d0*dacos(-1.d0)
double precision, parameter :: dtwo_pi = 2.d0*dacos(-1.d0)
double precision, parameter :: inv_sq_pi = 1.d0/dsqrt(dacos(-1.d0))
double precision, parameter :: inv_sq_pi_2 = 0.5d0/dsqrt(dacos(-1.d0))
double precision, parameter :: thresh = 1.d-15