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acrd.c File Reference

Inverse chord function. More...

#include "prim.h"
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double acrd (double x)
 Inverse chord function. More...

Detailed Description

Inverse chord function.

Definition in file acrd.c.

Function Documentation

◆ acrd()

double acrd ( double  x)

Inverse chord function.

    arccrd(x) = 2*arcsin(x/2)

Definition at line 45 of file acrd.c.

References asin().

Referenced by RealNumber::ArcChord().

46 {
47  double a = x / 2.0;
48  double b = asin(a);
49  double c = 2.0 * b;
50  return c;
51 }
double asin(double x)
Inverse sine function.
Definition: asin.c:100
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