Exhibit 2.1 AGREEMENT AND PLAN OF MERGERMerger Agreement • July 1st, 1999 • Macneal Schwendler Corp • Services-prepackaged software • Delaware
Contract Type FiledJuly 1st, 1999 Company Industry Jurisdiction
Exhibit 4.2 WARRANT AGREEMENT RELATING TO THE ISSUANCE OF THE COMMON STOCK PURCHASE WARRANTS THE MACNEAL-SCHWENDLER CORPORATION Dated as of June 18, 1999 SECTION 1. APPOINTMENT OF WARRANT AGENT 1Warrant Agreement • July 1st, 1999 • Macneal Schwendler Corp • Services-prepackaged software • New York
Contract Type FiledJuly 1st, 1999 Company Industry Jurisdiction
RECITALSRegistration Rights Agreement • July 1st, 1999 • Macneal Schwendler Corp • Services-prepackaged software • California
Contract Type FiledJuly 1st, 1999 Company Industry Jurisdiction
dated as of May 26, 1999 amongStock Purchase Agreement • July 1st, 1999 • Macneal Schwendler Corp • Services-prepackaged software
Contract Type FiledJuly 1st, 1999 Company Industry