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The golden ratio in mathematics is the irrational number (1 sqrt 5)/2. A decimal approximation of the number is 1.618. The German astronomer Johannes Kepler and his contemporaries were the first to call it the golden r... More »

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The golden ratio mask is a mask using decagons and pentagons as a foundation for understanding how well a face conforms to the golden ratio. This mask was developed by Dr. Stephen Marquardt as a way of better understandi... More »

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The golden ratio was first recorded and defined in written form around 300 B.C. by the Greek mathematician Euclid in his major work "Elements." It is believed that the ancient Greeks may have used the golden ratio to det... More »

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Phi is the 21st letter of the Greek alphabet and in mathematics, it is used as a symbol for the golden ratio. The golden ratio refers to a special number that is approximately equal to 1.618. It is also known as the gold... More »

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In mathematics, the short word form is created by writing a large number using a combination of numbers and words. For instance, the short word form of 785,000 is 785 thousand. More »

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In mathematics, zero is an even number. To be even, a number must be divisible by two with no remainder. Zero fits this description because zero divided by two equals zero. More »

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In mathematics, a factor of a base number is any number that can be evenly divided into the base number. Due to this definition, a factor can only be less or equal to the original base number. Although all whole numbers ... More »

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