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Note on applied mathematics. (Spanish) Zbl 0911.65040

Summary: Sometimes the solution of an algebraic equation of third degree is required in problems of technical applications; often it is necessary to use a handbook to get known formulas for obtaining the roots: the Cardan method, the natural trigonometric or hyperbolic lines.
In this paper, we present some tables which give a relatively simple way to obtain a real root of the equation; the other two roots are easy to obtain. It is known that a computer program solves every case, but we have not always access to it.

MSC:

65H05 Numerical computation of solutions to single equations
65A05 Tables in numerical analysis
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