Revision history

• September 5, 2011
  • Updated the links page.
  • URL changed to http://aah.darrellryan.com/.
• August 22, 2011
  • Cosmetic changes.
  • Fixed broken links.
• March 24, 2008
  • Updated the Introduction.
  • Added restrictions to the laws of exponents and radicals.
  • Updated the Inverse Trigonometric Functions page.
• July 17, 2006
  • Updated the links page.
• November 14, 2005
  • Corrected a typographical error. No new or updated material.
• May 31, 2005
  • Added a Reference Center containing common facts and formulas.
  • Added ``Is defined to be equal to'' to the Basic Operations, Relations page.
• May 20, 2003
  • URL changed to http://aah.ryan-usa.com/.
  • Added section ``Can I post the same question to other newsgroups in addition to Alt.Algebra.Help?''
  • Removed section ``Needed contributions.''
• October 21, 2002
  • Added section ``Where does the Quadratic Formula come from?''
  • Minor format changes to the PDF.
• October 7, 2002
  • Added section ``needed contributions''
  • Added section ``importance of parentheses''
  • Added section ``order of operations''
  • Added section ``Is $-1^2$ equal to 1 or -1?''
  • Minor updates to tables on how to type expressions
  • Minor verbiage modifications throughout
  • General Guidelines section now included in periodic posting to alt.algebra.help, alt.answers, news.answers
• January 10, 2002
  • Initial document.