Visual Numerics(R) Announces the IMSL(TM) C Numerical Library Version 6.0 With World-Class Linear Programming Optimization Technology and Advanced Forecasting Package, Including Neural Networks and Auto_ARIMA

Market Wire, February, 2006

Visual Numerics, Inc., celebrating 35 years of producing leading numerical analysis and visualization software, today extended its leadership in numerical analysis and optimization with a new version of its flagship IMSL™ C Numerical Library, used worldwide for data analysis in finance, technical, and business environments. IMSL™ C Numerical Library 6.0 now includes advanced forecasting techniques as well as breakthrough optimization technology. With neural network and Auto_ARIMA capabilities, and the industry's fastest dense linear programming algorithm in a general-purpose library, the IMSL™ C Numerical Library 6.0 helps companies in financial services, insurance or inventory management cost-effectively develop applications for portfolio optimization, risk modeling, and trading systems.

Key new features of IMSL™ C Numerical Library 6.0 include:

--  Neural Network Engine -- mimics human problem-solving processes by
    applying knowledge gained from historical data to new problems, which fine-
    tunes forecasting accuracy over time.  Visual Numerics' neural network
    technology features advanced data pre-processing to simplify data mining
    preparation and ensure optimal accuracy and performance, saving significant
    time over manual pre-processing.  This technology is optimal for highly
    configurable data mining and forecasting with no limits on network size.
--  Dense Linear Programming Optimizer -- for state-of-the-art constrained
    dense linear programming optimization.  This version of IMSL C Numerical
    Library offers the world's fastest optimizer of its kind in a general
    mathematical library.  In 2005 tests, IMSL solved 46 example problems in
    one-eighth the time of a leading Linear Programming Optimizer product.
    Also includes MPS format readers to facilitate usage with existing users of
    Linear Programming and will be welcomed by capital markets customers doing
    portfolio optimization, trading systems and risk modeling.
--  Auto_ARIMA -- advanced forecasting routine for time series analysis.
    It is highly suited to situations where data is prone to seasonality
    "spikes" or "outliers" such as operations management or inventory planning.
--  Differential Equations Package -- for financial engineering and
    scientific computing
--  New random number generator technique using Mersenne Twister algorithm
--  New LAPACK (Linear Algebra PACKage) functionality
    

"By adding fully-tested linear programming optimization, neural network capabilities and Auto_ARIMA, we're able to make our IMSL™ C Library a much more powerful and cost-effective option for companies who need state-of-the-art forecasting applications," said Phil Fraher, president and CEO of Visual Numerics. "IMSL™ C Numerical Library 6.0 leverages the proven reliability and easy deployment of our industry-leading IMSL library but with added technology that make it even better for performing predictive analytics."

About The IMSL(TM) C Numerical Library

The IMSL(TM) C Numerical Library (CNL) provides advanced mathematical and statistical functionality for programmers to embed in applications that are written in one of the most important mainstream programming environments in use today, C/C . This comprehensive set of thread safe functions is based upon the same algorithms contained in the highly regarded IMSL Fortran Library.

Pricing and Availability

The IMSL™ C Numerical Library 6.0 is available immediately. Development seat costs start at $1,495.

About Visual Numerics, Inc.

Visual Numerics has provided technical software solutions for numerical analysis and visualization for more than three decades. 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 customized professional services for applications that involve mathematical, statistical, or visual data analysis to meet today's business analytical needs.

Major corporations, academic institutions, and research laboratories worldwide use Visual Numerics' software tools, including such high profile companies as: Bear, Stearns & Company; Barclays Global Investors; Priceline.com; Humana, Sandia National Laboratories; and Boeing Company. 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.

Trademark Statement:

Visual Numerics and PV-WAVE are registered trademarks of Visual Numerics, Inc. in the U.S. and other countries. IMSL, JMSL, JWAVE, TS-WAVE and Knowledge in Motion are trademarks of Visual Numerics, Inc. All other company, product or brand names are the property of their respective owners.

VISUAL NUMERICS MEDIA CONTACT: Eastwick Communications Brigit Valencia 650.480.4019 Email Contact