July 21, 2003
FOR IMMEDIATE RELEASE

Rapt Selects Visual Numerics' JMSL™ Numerical Library

JMSL Enables Rapt's Developers to Dedicate Valuable Time Towards Developing Strategic Price Optimization Intellectual Properties

San Francisco, California - July 21, 2003 - Rapt, Inc., a leading provider of profit optimization software, today announced that it has chosen Visual Numerics' JMSL™ Numerical Library for Java™ Applications to provide industry standard, numerical analysis development tools to Rapt engineers.

Rapt's developers sought a collection of numerical libraries that would allow them to dedicate more time on advancing their own proprietary algorithms that constitute the foundation of the company's leading price optimization software, Rapt Price Director™. Rapt programmers selected Visual Numerics' JMSL Numerical Library 2.0 for Java Applications based on its extensive collection of 100% Java algorithms and charting that complement Rapt's price optimization analytics.

"We best serve our customers by focusing in-house development resources on break-through algorithms that provide sustainable competitive advantages in the profit optimization area. By eliminating the need to recode and test numerical and statistical algorithms, JMSL allows Rapt engineers to accelerate development of our highly-specialized price optimization technology." said Paul Dagum, co-founder and Chief Science Officer at Rapt.

Visual Numerics' JMSL is an expansive collection of mathematical, statistical, finance and charting classes, created in 100 percent Java, which gives programmers the fundamental "building blocks" of algorithmic capabilities for developing flexible, analytical applications. JMSL is based on the time-tested, industry standard IMSL libraries. IMSL is an accurate and reliable repository of algorithms providing developers the tools they need for more efficient programming.

"JMSL is the only robust, fully-supported library of Java algorithms that gives programmers a comprehensive set of analysis and charting routines, enabling them to reduce their development time and dedicate more resources to industry-specific programs and specialized vertical applications," said Phil Fraher, Chief Operating Officer at Visual Numerics.

Visual Numerics has provided technical software solutions for numerical analysis and visualization for over 30 years. The company's software products help users understand complex data from a variety of sources and build business-critical applications. Visual Numerics offers two product lines: the IMSL Numerical Libraries for powerful mathematical and statistical analysis and the PV-WAVE visual data analysis development environment. Visual Numerics also offers consulting services for applications that involve mathematical, statistical, or visual analysis. Major corporations, academic institutions, and research laboratories worldwide use Visual Numerics' software tools, including such high profile companies as: Bear, Stearns & Company; Sandia National Laboratories; Boeing Company; and Coleman Research Corp. This large and diverse customer base is supported through a direct sales force, wholly owned international subsidiaries, and international distributors. For more information about Visual Numerics, please visit www.vni.com.

Rapt, Inc. is the market leader in Profit Optimization and Pricing Intelligence software. Selected as a Computerworld Top 100 Emerging Company for 2002, Rapt's algorithmic technology has been covered by The Economist and USA Today. With Rapt's Profit Center solution, companies such as Sun Microsystems and Hewlett-Packard have liberated significant revenue and profit while simultaneously growing market share. San Francisco-based and privately-held, Rapt is funded by Accel Partners, Levensohn Capital, and Summit Accelerator Fund.

Editor's Notes:

Rapt, Rapt Price Director, and the Rapt logo are trademarks of Rapt, Inc. JMSL and IMSL are trademarks of Visual Numerics, Inc. All other company, product or brand names are the property of their respective owners.