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26 lines
346 B
OCaml
26 lines
346 B
OCaml
type units =
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| Bohr
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| Angstrom
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type angle_units =
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| Degree
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| Radian
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let pi = acos (-1.)
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let to_degree x =
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assert (x <= 2.*.pi);
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assert (x >= -2.*.pi);
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x *. 180. /. pi
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let to_radian x =
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assert (x <= 360.);
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assert (x >= -360.);
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x *. pi /. 180.
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let angstrom_to_bohr = 1. /. 0.52917721092
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let bohr_to_angstrom = 0.52917721092
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;;
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