Add math functions to calculate normalization arrays
Add math functions to calculate normalization arrays

wbinventor/openmc,wbinventor/openmc,johnnyliu27/openmc,paulromano/openmc,smharper/openmc,walshjon/openmc,shikhar413/openmc,amandalund/openmc,walshjon/openmc,liangjg/openmc,wbinventor/openmc,amandalund/openmc,mit-crpg/openmc,paulromano/openmc,liangjg/openmc,mit-crpg/openmc,johnnyliu27/openmc,amandalund/openmc,shikhar413/openmc,smharper/openmc,smharper/openmc,mit-crpg/openmc,johnnyliu27/openmc,liangjg/openmc,shikhar413/openmc,amandalund/openmc,liangjg/openmc,paulromano/openmc,paulromano/openmc,mit-crpg/openmc,shikhar413/openmc,walshjon/openmc,smharper/openmc,walshjon/openmc,johnnyliu27/openmc,wbinventor/openmc