OBSOLETE UNITS PACKAGE SYMBOL
As of Version 9.0, unit functionality is built into the Wolfram Language
is a unit of pressure.
- To use PSI, you first need to load the Units Package using Needs["Units`"].
- PSI is equivalent to approximately 6894.76 Pascal (SI units).
- Convert[n PSI,newunits] converts n PSI to a form involving units newunits.