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Subroutine MAP_UTIL_NORM

  1. Provenance of code.
  2. Purpose of code.
  3. Specification.
  4. Description of subroutine's operation.
  5. References.
  6. Parameter descriptions.
  7. Error indicators.
  8. Accuracy estimate.
  9. Any additional information.
  10. Example of code
  11. Auxiliary subroutines required.
  12. Keywords.
  13. Download source code.
  14. Links.

Provenance of Source Code

H.K.D.H. Bhadeshia,
Phase Transformations Group,
Department of Materials Science and Metallurgy,
University of Cambridge,
Cambridge, U.K.

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Purpose

To normalise a three dimensional vector.

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Specification

Language:FORTRAN
Product form:Source code

SUBROUTINE MAP_UTIL_NORM(X, Y, Z)

REAL X, Y, Z

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Description

MAP_UTIL_NORM normalises the vector [X,Y,Z]. The subroutine calculates the square root of X2 + Y2 + Z2 and divides each component of the vector by it.

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References

None supplied.

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Parameters

Input parameters

X,Y,Z - reals
X,Y,Z are the components of the input vector.

Output parameters

X,Y,Z - reals
On output, X,Y,Z, are the normalised components of the vector.

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Error Indicators

None.

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Accuracy

No information supplied.

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Further Comments

None.

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Example

1. Program text

       REAL X,Y,Z
       READ (5,*) X,Y,Z
       CALL MAP_UTIL_NORM(X,Y,Z)
       WRITE (6,*) X,Y,Z
       STOP
       END

2. Program data

1.0   2.0   3.0

3. Program results

0.267261   0.534522   0.801784

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Auxiliary Routines

None.

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Keywords

normalise, vector

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Download

Download source code

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