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## NAME

MolecularFormula

## SYNOPSIS

use MolecularFormula;

use MolecularFormula qw(:all);

## DESCRIPTION

MolecularFormula module provides the following functions:

CalculateElementalComposition, CalculateExactMass, CalculateMolecularWeight , FormatCompositionInfomation, GetElementsAndCount, IsMolecularFormula

## FUNCTIONS

CalculateMolecularWeight
  $MolecularWeight = CalculateMolecularWeight($MolecularFormula);

  Calculates and returns the molecular weight for a specified MolecularFormula.

CalculateElementalComposition
  ($ElementsRef, $ElementCompositionRef) = CalculateElementalComposition($MolecularFormula);

  Calculates the percent composition in a specified MolecularFormula and returns references to arrays containing elements and their percent composition.

CalculateExactMass
  $ExactMass = CalculateMolecularWeight($MolecularFormula);

  Calculates and returns the exact mass for a specified MolecularFormula.

FormatCompositionInfomation
  $FormattedString = FormatCompositionInfomation($ElementsRef, $ElementCompositionRef, [$Precision]);

  Returns a formatted elemental composition string using references to elements and elemental composition arrays. Precision is an optional parameter; its default value is 2.

GetElementsAndCount
  ($ElementsRef, $ElementCountRef) = GetElementsAndCount( $MolecularFormula);

  Retrieves elements and their count composition in a specified MolecularFormula and returns references to arrays containing elements and their count.

IsMolecularFormula
  $Status = IsMolecularFormula($MolecularFormula);
  ($Status, $ErrorMsg) = IsMolecularFormula($MolecularFormula);

  Returns 1 or 0 a based on whether it's a valid MolecularFormula.

## AUTHOR

Manish Sud

## SEE ALSO

Molecule.pm

## COPYRIGHT

Copyright (C) 2015 Manish Sud. All rights reserved.

This file is part of MayaChemTools.

MayaChemTools is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

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