A files containing mathematic notes and equations including notes on the Newton-Raphson method. In addition this there are a number of papers including 'A Numerical Treatment of the Orr-Sommerfield Equation in the Case of Laminar Jet', by C.W. Clenshaw and S. Elliott, reprinted from the Quarterly Journal of Mechanics and Applied Mathematics, 'A Method for numerical integration on an automatic computer' by C.W. Clenshaw and A.R. Curtis, 'Householder's Method for the Solution of the Algebraic Eigenproblem' by J.H. Wilkinson, 'The Determination of the Optimum Acceleration Factor for Successive Over-relaxation' by B.A. Carre, 'Computing by Continued Fractions' by H.F. Sandham, 'Numerical Differentiation' by H.F. Sandham, 'Numerical Integration' by H.F. Sandham, 'Uses of Chebyshev Polynomials' by Cornelius Lanczos and 'Some Examples of numerical Methods and the Philosophy behind them' by Stiefel.