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Where did pi come from?

The name pi came into use alongside the Greek character pi in the early 18th century, when British mathematician William Jones used the symbol to denote the ratio of a circle's circumference to its diameter. Over the millennia, the understanding and definition of pi has improved, and contemporary supercomputers can compute pi to over 10 trillion digits.

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How do you calculate antilog?

Common bases used when calculating antilog are base 10 and base e. For example, the base 10 antilog of the number 3 is equal to 10^3, or 10*10*10 = 1000. The base "e" antilog of the number 3 is equal to e^3, or approximately 20.0855. Some buttons or series of buttons on calculators that represent antilog include LOG-1, 10^x, ALOG and INV LOG. Also, the e^x button calculates the natural antilog. The antilog of a logarithm of a positive number "x" is equal to x, assuming that the antilog and log use the same base. For example, a base 10 antilog of "log 3" is equivalent to 10^(log 3), which equal..

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What is a comparison of two quantities by division?

According to PurpleMath, there are three common notations to express ratios. One method expresses the ratio in words; for example, if there are 35 people at a party, of which 15 are men and 20 are women, then the ratio of men to women is "15 to 20." This can also be expressed in odds notation as "15:20" or in fractional notation as "15/20." As the total number increases or decreases by a certain scale factor, the items on both sides of the ratio increase or decrease by the same scale factor. For example, if the number of total people at the party were multiplied by a factor of two and there we..

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What are natural numbers?

Natural numbers are also referred to as "counting" numbers because people use them to count and order things. Given that, there is some disagreement amongst mathematicians about whether 0 is a natural number or not. Humans have used natural numbers to count since caveman days, and to count something, people started with 1. This is the reason mathematicians against starting with 0 claim it is not a natural number.

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What does distributive property mean?

Using the distributive property in this way helps such number problems to be solved quickly and often without pen and paper. In using the distributive property algebraically, the number on the outside of the parentheses applies to all numbers inside the parentheses.\nIn the above example, x(y + z) = xy + xz, the variable x is multiplied by both variables in the parentheses, which are y and z. The sign inside the parentheses indicates whether addition or subtraction then occurs. If the equation reads, x(y - z), then the distributive property indicates the equivalent is xy - xz.\nIf x equals 2, ..

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Why are fractions important?

In construction or carpentry, precise measurements are important to build houses or cutting lumber for home projects. Similarly, a driver needs to know what distances, such as a half-mile or quarter-mile represent. In the high jump, the height jumped by competitors is given in fractions, such as 3 1/2 feet.Fractions are important in many other professions, such as for pharmacists and seamstresses. Its also necessary for students to learn fractions so they can take higher order math courses like algebra, where the topic of rational expressions involves adding and subtracting expressions in frac..

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What is an example of a geometry tutorial?

An introductory tutorial that provides an overview on geometry may cover the different types of angles, the definition of a line, the different types of triangles, the meaning of the term polygon, the use of congruent and similar figures in geometry problems, the relationship between transversal and parallel lines and the parts of a circle. In contrast, a tutorial on a more specific area of geometry, such as coordinate graphing, may cover the Cartesian plane, the meaning of quadrants and ordered pairs, the direction of negative and positive values and worksheets with problems pertaining to the..

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What is the prime factorization of 64?

A prime number has no other factors aside from 1 and itself. The process of finding which prime numbers when multiplied together will result to a certain number is called prime factorization. The method is done by breaking the original number into two of its factors and continuously splitting these factors until all of them are prime numbers. Making a factor tree is a good visual approach to performing prime factorization.

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How do I convert a test score to a percentage?

For example, if there are 25 questions on a test and a student gets 22 of them correct, then the test score percentage is (22/25) * 100 = 88 percent. If the number of questions the student answered correctly is not known, but the number answered incorrectly is known, an alternative method of calculation is ((total questions - number wrong) / total questions) * 100 percent. In the example above, the student would have gotten three questions incorrect; therefore, the test score percentage is calculated as ((25 - 3) / 25) * 100 = 88 percent.

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Is a square always a rhombus?

A rhombus is sometimes called a diamond, because it makes a traditional diamond shape. Rhombuses are a type of parallelogram, which means their opposite sides are always parallel, and their opposite angles are always equal. A square is the only type of rhombus where all four angles are equal, and the only rhombus that also meets the definition of a rectangle (all angles are 90 degrees). Any four-sided geometric shape can also be called a quadrilateral.

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