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The Little Professor is a backwards-functioning calculator designed for children ages 5 to 9. Instead of providing the answer to a mathematical expression entered by the user, it generates unsolved expressions and prompts the user for the answer.
In 1998 he published the Harper Paperbacks book Math Magic for Your Kids: Hundreds of Games and Exercises from the Human Calculator to Make Math Fun and Easy. A revised edition of his book Math Magic: How to Master Everyday Math Problems was published in 2004.
A modern scientific calculator with an LCD. An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics . The first solid-state electronic calculator was created in the early 1960s.
Calculators are simple tool for the classroom and beyond. Here are our top picks for students and accountants alike.
Its mission is to provide engaging math programs for middle school students of all ability levels to build confidence and improve attitudes about math and problem solving. In Mathcounts, there are four different rounds. There is the Team Round, Target Round, Sprint Round, and Countdown Round.
A modern calculator gives sin(75° 9′ 50″) = 0.96666219991, so our interpolated answer is accurate to the 7-digit precision of the Bernegger table. For tables with greater precision (more digits per value), higher order interpolation may be needed to get full accuracy.
Cartesian coordinates. In a Cartesian coordinate system with coordinates (x, y), a unit square is defined as a square consisting of the points where both x and y lie in a closed unit interval from 0 to 1 . That is, a unit square is the Cartesian product I × I, where I denotes the closed unit interval.
As formulas are entirely constituted with symbols of various types, many symbols are needed for expressing all mathematics. The most basic symbols are the decimal digits (0, 1, 2, 3, 4, 5, 6, 7, 8, 9), and the letters of the Latin alphabet.
The TI-12 Math Explorer is an educational calculator designed particularly for students in grades 3–5. The Math Explorer slotted above the TI-7 MathMate by offering fraction and exponent capabilities, as well as a pi button.
Pascal's calculator (also known as the arithmetic machine or Pascaline) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen.