72 lines
1.4 KiB
Modula-2
72 lines
1.4 KiB
Modula-2
DEFINITION MODULE Mathlib;
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(*
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Module: Mathematical functions
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Author: Ceriel J.H. Jacobs
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Version: $Header$
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*)
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(* Some mathematical constants: *)
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CONST
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(* From: Handbook of Mathematical Functions
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Edited by M. Abramowitz and I.A. Stegun
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National Bureau of Standards
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Applied Mathematics Series 55
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*)
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pi = 3.141592653589793238462643;
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twicepi = 6.283185307179586476925286;
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halfpi = 1.570796326794896619231322;
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quartpi = 0.785398163397448309615661;
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e = 2.718281828459045235360287;
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ln2 = 0.693147180559945309417232;
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ln10 = 2.302585092994045684017992;
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(* basic functions *)
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PROCEDURE pow(x: REAL; i: INTEGER): REAL;
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PROCEDURE sqrt(x: REAL): REAL;
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PROCEDURE exp(x: REAL): REAL;
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PROCEDURE ln(x: REAL): REAL; (* natural log *)
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PROCEDURE log(x: REAL): REAL; (* log with base 10 *)
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(* trigonometric functions; arguments in radians *)
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PROCEDURE sin(x: REAL): REAL;
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PROCEDURE cos(x: REAL): REAL;
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PROCEDURE tan(x: REAL): REAL;
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PROCEDURE arcsin(x: REAL): REAL;
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PROCEDURE arccos(x: REAL): REAL;
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PROCEDURE arctan(x: REAL): REAL;
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(* hyperbolic functions *)
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PROCEDURE sinh(x: REAL): REAL;
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PROCEDURE cosh(x: REAL): REAL;
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PROCEDURE tanh(x: REAL): REAL;
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PROCEDURE arcsinh(x: REAL): REAL;
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PROCEDURE arccosh(x: REAL): REAL;
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PROCEDURE arctanh(x: REAL): REAL;
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(* conversions *)
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PROCEDURE RadianToDegree(x: REAL): REAL;
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PROCEDURE DegreeToRadian(x: REAL): REAL;
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END Mathlib.
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