On the Selection of a Root of a Quadratic Equation Applied to a Problem in Gas Dynamics
- 4 July 1965
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of the Royal Aeronautical Society
- Vol. 69 (655) , 493-497
- https://doi.org/10.1017/s0001924000059157
Abstract
Summary An account of the solution of a quadratic equation associated with a gas dynamic problem is given. Numerical examination of the equation Indicated that a conditional statement was required In a computer programme to determine the sign to be used in front of a square root. The necessity for this conditional statement was examined by studying a general quadratic equation. The study has also led to the formulation of a rule on the selection of a “desired root” of a quadratic equation.Keywords
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