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/vector [ Modules ]

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NAME

module vector

PURPOSE

This module defines functions for vector handling

vector/sphericalVector [ Functions ]

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NAME

function sphericalVector(theta,phi,rabs) result(r)

PURPOSE

Returns cartesian vector with spherical coordinates (theta,phi,rAbs)

INPUTS

  • real,intent (in) :: theta [degrees], phi [degrees]
  • real,intent (in) :: rabs

OUTPUT

  • real, dimension(1:3) :: r

vector/sphericalVector_radian [ Functions ]

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NAME

function sphericalVector_radian(theta,phi,rabs) result(r)

PURPOSE

Returns cartesian vector with spherical coordinates (theta,phi,rAbs)

INPUTS

  • real,intent (in) :: theta [radian], phi [radian]
  • real,intent (in) :: rabs

OUTPUT

  • real, dimension(1:3) :: r

vector/theta_in [ Functions ]

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NAME

real function theta_in(a,b,switch)

PURPOSE

Calculates angle in between vector a and b.

INPUTS

  • real ,dimension (1:3),intent(in) :: a,b
  • integer,intent(in), optional :: switch

OUTPUT

  • real :: theta_in

NOTES

  • If no switch is given or switch=1, then units : [degrees]
  • If switch=2, then units : [radian]

vector/absVec [ Functions ]

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NAME

real function absVec(a)

PURPOSE

Calculates the absolute value of a vector a.

INPUTS

  • real ,dimension (:),intent(in) :: a

vector/crossProduct [ Functions ]

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NAME

function crossProduct(a,b)

PURPOSE

Calculates cross product of two 3-vectors: c= a x b = sum_{j,k} \epsilon_{ijk} a_j b_k

INPUTS

real ,dimension (1:3),intent(in) :: a,b

OUTPUT

real ,dimension (1:3) :: crossProduct