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MathLib0.md

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MathLib0.md

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MathLib0

Standard mathematical functions. Provides common floating-point operations following the PIM4 library convention.

Exported Procedures

PROCEDURE sqrt(x: REAL): REAL;
PROCEDURE exp(x: REAL): REAL;
PROCEDURE ln(x: REAL): REAL;
PROCEDURE sin(x: REAL): REAL;
PROCEDURE cos(x: REAL): REAL;
PROCEDURE arctan(x: REAL): REAL;
PROCEDURE entier(x: REAL): INTEGER;
PROCEDURE real(n: INTEGER): REAL;

Notes

  • entier returns the largest integer not greater than x (floor).
  • real converts an integer to its floating-point representation.
  • ln is the natural logarithm (base e).
  • Angles for sin, cos, and arctan are in radians.

Example

MODULE MathDemo;
FROM MathLib0 IMPORT sqrt, sin, cos, real;
FROM InOut IMPORT WriteString, WriteLn;
FROM RealInOut IMPORT WriteReal;
VAR hyp: REAL;
BEGIN
  hyp := sqrt(real(3) * real(3) + real(4) * real(4));
  WriteString("Hypotenuse: ");
  WriteReal(hyp, 10);
  WriteLn;
END MathDemo.