Following is a list of all DERIVE utility files with a short description of their contents. Use the on-line help to obtain details. The files also provide good examples of how to program in DERIVE.

• APPROX.MTH defines functions for finding Padé rational approximations.
• BESSEL.MTH defines functions for computing Bessel and Airy functions.
• DIF_APPS.MTH defines functions that use symbolic differentiation.
• ELLIPTIC.MTH defines functions for computing elliptic integrals.
• ENGLISH.MTH defines unit conversion factors for the English unit system used in the United States.
• EXP_INT.MTH defines functions for computing exponential, log, sine, and cosine integrals.
• FRESNEL.MTH defines functions for computing Fresnel integrals.
• GRAPHICS.MTH defines functions that aid in plotting space curves, parametric surfaces, and complex-valued expressions.
• HYPERGEO.MTH defines functions for computing hypergeometric functions.
• INT_APPS.MTH defines functions that use symbolic integration.
• METRIC.MTH defines unit conversion factors for the metric unit system.
• MISC.MTH defines miscellaneous utility functions.
• NUMBER.MTH defines functions useful for investigations in number theory.
• NUMERIC.MTH defines functions for numeric differentiation and integration.
• ODE_APPR.MTH defines functions for finding approximate solutions of ordinary differential equations.
• ODE1.MTH defines functions for solving first-order ordinary differential equations.
• ODE2.MTH defines functions for solving second-order ordinary differential equations.
• ORTH_POL.MTH defines functions for computing orthogonal polynomials.
• PHYSICAL.MTH defines fundamental physical constants to high precision.
• PROBABIL.MTH defines the incomplete gamma function and its relatives. It supplements the pre-defined probability functions.
• RECUREQN.MTH defines functions for solving recurrence equations.
• SOLVE.MTH defines functions for finding approximate real or complex roots of nonlinear systems of simultaneous algebraic equations.
• SUPPORT.PAS defines functions in PASCAL for use with the PAS files generated by the File:Write command.
  
• VECTOR.MTH defines functions that automate some of the operations commonly performed on vectors and matrices. It supplements the predefined vector and matrix functions.
• ZETA.MTH defines functions for approximating functions related to the Riemann zeta function.

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