Module j1_coeffs 

Statics

J1_COEFFS 🔒

Following search for J1 (see J1_ZEROS) zeros and extremums: at each zero and extremum we’re doing Taylor series expansion one that should be enough to cover whole interval between zero or peak which is PI/4

J1_ZEROS 🔒

J1 zeros and extremums on [-76;76]

J1_ZEROS_VALUE 🔒

Precomputed values in exact Bessel J1 zero.