Exhibit 16.1
April 30, 2002
Office of the Chief Accountant
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549
Dear Sir/Madam:
We have read the 1st paragraph of Item 4 included in the Form 8-K dated April 29, 2002 of Mentor Graphics Corporation to be filed with the Securities and Exchange Commission and are in agreement with the statements contained therein.
cc: Mr. Anthony B. Adrian
