
Algorithms for Integer Arithmetic
... The direction (sign) is given by whether the number of negative numbers is even or odd. If negative, write the negative sign down. ...
... The direction (sign) is given by whether the number of negative numbers is even or odd. If negative, write the negative sign down. ...
Introduction to Mathematical Reasoning, Saylor 111 Fractions
... (c) Notice that the mediant of two fractions depends on the way they are represented and not just on their value. Explain Simpson’s Paradox in terms of mediants. (d) Define the mediant M of two fractions a/b and c/d with the notation M (a/b, c/d). So M (a/b, c/d) = (a + c)/(b + d). This operation is ...
... (c) Notice that the mediant of two fractions depends on the way they are represented and not just on their value. Explain Simpson’s Paradox in terms of mediants. (d) Define the mediant M of two fractions a/b and c/d with the notation M (a/b, c/d). So M (a/b, c/d) = (a + c)/(b + d). This operation is ...
Floating Point Numbers
... S is the sign bit • (-1)S (-1)0 = +1 and (-1)1 = -1 • Just a sign bit for signed magnitude E is the exponent field • The E field is a biased-127 representation. • True exponent is (E – bias) • The base (radix) is always 2 (implied). • Some early machines used radix 4 or 16 (IBM) ...
... S is the sign bit • (-1)S (-1)0 = +1 and (-1)1 = -1 • Just a sign bit for signed magnitude E is the exponent field • The E field is a biased-127 representation. • True exponent is (E – bias) • The base (radix) is always 2 (implied). • Some early machines used radix 4 or 16 (IBM) ...
Numerical Mathematical Analysis
... Computers use 2 formats for numbers. Fixed-point numbers are used to store integers. Typically, each number is stored in a computer word of 32 binary digits (bits) with values of 0 and 1. ⇒ at most 232 different numbers can be stored. If we allow for negative numbers, we can represent integers in th ...
... Computers use 2 formats for numbers. Fixed-point numbers are used to store integers. Typically, each number is stored in a computer word of 32 binary digits (bits) with values of 0 and 1. ⇒ at most 232 different numbers can be stored. If we allow for negative numbers, we can represent integers in th ...
Week 6: Weekly Challenge Solutions
... A line passes through a square so that it makes two symmetrical triangles. What is the smallest angle in these two triangles? Answer: 45° Solution: We first note that the line must pass through two diagonally opposite corners of the square as otherwise at least one shape is not a triangle. There are ...
... A line passes through a square so that it makes two symmetrical triangles. What is the smallest angle in these two triangles? Answer: 45° Solution: We first note that the line must pass through two diagonally opposite corners of the square as otherwise at least one shape is not a triangle. There are ...
1 Guided Notes for lesson P.2 – Properties of Exponents If a, b, x, y
... Where the coefficients of a binomial expansion come from? Definition: The coefficient of any term of binomial expansion is called a binomial coefficient and is found n n! by provided n, r ¢ and n r . r r ! n r ! ...
... Where the coefficients of a binomial expansion come from? Definition: The coefficient of any term of binomial expansion is called a binomial coefficient and is found n n! by provided n, r ¢ and n r . r r ! n r ! ...
6-3B Solving Multi-Step Inequalities
... A multi-step inequality is solved by transforming the inequality more than one time. Undo addition or subtraction before undoing multiplication or division or you may make the problem more complicated to solve. Always remember the basic rule when isolating the variable: Whatever you do to one side o ...
... A multi-step inequality is solved by transforming the inequality more than one time. Undo addition or subtraction before undoing multiplication or division or you may make the problem more complicated to solve. Always remember the basic rule when isolating the variable: Whatever you do to one side o ...
Arithmetic

Arithmetic or arithmetics (from the Greek ἀριθμός arithmos, ""number"") is the oldest and most elementary branch of mathematics. It consists of the study of numbers, especially the properties of the traditional operations between them—addition, subtraction, multiplication and division. Arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis. The terms arithmetic and higher arithmetic were used until the beginning of the 20th century as synonyms for number theory and are sometimes still used to refer to a wider part of number theory.