Attached files

file filename
EXCEL - IDEA: XBRL DOCUMENT - ANSYS INCFinancial_Report.xls
EX-31.2 - SECTION 302 CFO CERTIFICATION - ANSYS INCd318108dex312.htm
EX-32.2 - SECTION 906 CFO CERTIFICATION - ANSYS INCd318108dex322.htm
EX-31.1 - SECTION 302 CEO CERTIFICATION - ANSYS INCd318108dex311.htm
EX-32.1 - SECTION 906 CEO CERTIFICATION - ANSYS INCd318108dex321.htm
10-Q - FORM 10-Q - ANSYS INCd318108d10q.htm

EXHIBIT 15

May 3, 2012

ANSYS, Inc.

275 Technology Drive

Canonsburg, PA 15317

We have reviewed, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the unaudited interim financial information of ANSYS, Inc. and subsidiaries for the periods ended March 31, 2012, and 2011, as indicated in our report dated May 3, 2012; because we did not perform an audit, we expressed no opinion on that information.

We are aware that our report referred to above, which is included in your Quarterly Report on Form 10-Q for the quarter ended March 31, 2012, is incorporated by reference in Registration Statement Nos. 333-08613, 333-69506, 333-110728, 333-137274, 333-152765, 333-174670, and 333-177030 on Form S-8.

We also are aware that the aforementioned report, pursuant to Rule 436(c) under the Securities Act of 1933, is not considered a part of the Registration Statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of Sections 7 and 11 of that Act.

/s/ Deloitte & Touche LLP

Pittsburgh, Pennsylvania