Exhibit 23.1



                          INDEPENDENT AUDITORS' CONSENT

We consent to the incorporation by reference in this  Registration  Statement of
ANSYS Inc. on Form S-8 of our reports dated  January 29, 2003  (February 4, 2003
as to the last  paragraph  of Note 3) (which  report  expresses  an  unqualified
opinion and includes an explanatory  paragraph  relating to the Company's change
in method of  accounting  for  goodwill  and  other  intangible  assets to adopt
Statement  of  Financial  Accounting  Standards  No.  142,  "Goodwill  and Other
Intangible  Assets") and March 19, 2003,  appearing in the Annual Report on Form
10-K of ANSYS Inc. for the year ended December 31, 2002 and in the Annual Report
on Form 11-K of the ANSYS Inc.  Employee  Stock Purchase Plan for the year ended
January 31, 2003, respectively.



/s/ Deloitte & Touche LLP

Pittsburgh, Pennsylvania
November 25, 2003