The following references might be helpful to you as you use the Mathematics VIs:
Asmar, Nakhle H. Partial Differential Equations with Fourier Series and Boundary Value Problems. 2d ed. Englewood Cliffs, N.J.: Prentice Hall, 2004.
Barrett, Richard et al. Templates for the Solution of Linear Systems: Building Blocks for Iterative Methods. 2d ed. Philadelphia: SIAM, 1994.
Brenner, Susanne C., and L. Ridgway Scott. The Mathematical Theory of Finite Element Methods. New York: Springer, 1994.
Chugani, Mahesh L., Abhay R. Samant, and Michael Cerna. LabVIEW Signal Processing. Upper Saddle River, N.J.: Prentice Hall, 1998.
Crandall, Richard E. Projects in Scientific Computation. Berlin: Springer, 2009.
De Boor, Carl. A Practical Guide to Splines. New York: Springer, 2001.
Ecker, Joseph G., and Michael Kupferschmid. Introduction to Operations Research. New York: Krieger Publishing, 2004.
Fahmy, M. F. "Generalized Bessel Polynomials with Application to the Design of Bandpass Filters." Circuit Theory and Applications 5, (1977): 337-342.
Gander, Walter, and Jiri Hrebicek. Solving Problems in Scientific Computing Using Maple and MATLAB. 4th ed. Berlin: Springer, 2008.
Lanczos, C. A. "Precision Approximation of the Gamma Function." Journal of the Society for Industrial and Applied Mathematics. Series B, Numerical Analysis 1, (1964): 86-96.
Montgomery, Douglas C., and George C. Runger. Applied Statistics and Probability for Engineers. 4th ed. New York: John Wiley & Sons, 2006.
Nocedal, Jorge, and Stephen J. Wright. Numerical Optimization. 2d ed. New York: Springer, 2006.
Oppenheim, Alan V., and Alan S. Willsky. Signals and Systems. 2d ed. New York: Prentice Hall, 1996.
Press, William H. et al. Numerical Recipes in C++: The Art of Scientific Computing. 2d ed. Cambridge: Cambridge University Press, 2002.
Rockey, K. C. et al. The Finite Element Method: A Basic Method. Oxford: Blackwell Science, 1991.
Wilkinson, J. H., and C. Reinsch. Linear Algebra, Vol. 2 of Handbook for Automatic Computation. New York: Springer, 1986.
Zwillinger, Daniel. Handbook of Differential Equations. 3d ed. San Diego: Academic Press, 1998.