New simple ways to solve equations

How to solve equations by mental arithmetic, which strengthens the capacity for thinking and improves the memory

Einar Östmyren (Autor)

Buch | Softcover

96 Seiten

2018
BoD - Books on Demand (Verlag)
978-91-7699-768-0 (ISBN)

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When you have a possibility to choose the easiest and fastest method when solving an equation, your flexibility and creativity are stimulated.In this book I introduce a new formula for quadratic equations and a new method for factorising polynomials. With this method all kinds of equations with rational numbers can be solved easier and faster than with any other formula or method.But in order to solve quadratic equations containing irrational numbers, e.g. pi, a formula must be used. A comparative test showed that quadratic equations were solved much faster by using this new formula compared to the so called pq-formula. In addition all these equations could be solved by mere mental arithmetic.That is unique.Some equations containing rational numbers can even be solved by mere mental arithmetic without using pen and paper.

Einar Östmyren föddes 1932 i den norska staden Risör och vid 21 års ålder reste han till Sverige och utbildade sig till kemiingejör.

Erscheinungsdatum	04.03.2022
Sprache	englisch
Maße	189 x 246 mm
Gewicht	186 g
Themenwelt	Mathematik / Informatik ► Mathematik ► Algebra
Schlagworte	Easy and fast to solve equations • Equations • Simple mental aritmetic
ISBN-10	91-7699-768-5 / 9176997685
ISBN-13	978-91-7699-768-0 / 9789176997680
Zustand	Neuware