is_concyclic Function

  1. vecfor_RPP.F90
  2. vecfor_RPP
  3. is_concyclic

public elemental function is_concyclic(self, pt1, pt2, pt3, tolerance) result(is_concyclic_)

Return true if the point is concyclic with other three given points.

Based on Ptolemy’s Theorem.

 type(vector) :: pt(0:3)

 pt(0) = -1 * ey
 pt(1) =  1 * ex
 pt(2) =  1 * ey
 pt(3) = -1 * ex
 print "(L1)", pt(0)%is_concyclic(pt1=pt(1), pt2=pt(2), pt3=pt(3))

 type(vector) :: pt(0:3)

 pt(0) = -1 * ey
 pt(1) =  1 * ex
 pt(2) =  1 * ey
 pt(3) = -1 * ex
 print "(L1)", is_concyclic(pt(0), pt1=pt(1), pt2=pt(2), pt3=pt(3))

Arguments

TypeIntentOptionalAttributesName
class(vector), intent(in) :: self

Vector.
type(vector), intent(in) :: pt1

First arc point.
type(vector), intent(in) :: pt2

Second arc point.
type(vector), intent(in) :: pt3

Third arc point.
real(kind=R8P), intent(in), optional :: tolerance

Tolerance for concyclicity check.

Return Value logical

Inquire result.


Calls

proc~~is_concyclic~~CallsGraph proc~is_concyclic is_concyclic proc~sq_norm sq_norm proc~is_concyclic->proc~sq_norm

Called by

proc~~is_concyclic~~CalledByGraph proc~is_concyclic is_concyclic program~volatile_doctest~56 volatile_doctest program~volatile_doctest~56->proc~is_concyclic

Contents

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