## Triangle Trick

Triangle Trick If you look closely, you can see that the slope of the triangle is not a straight line.One of the merged triangles is slightly convex up and the other is…

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Triangle Trick If you look closely, you can see that the slope of the triangle is not a straight line.One of the merged triangles is slightly convex up and the other is…

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Fourier series A Fourier series is a way to represent a function as the sum of simple sine waves. A simple trigonometric function consists of a smooth surface. If you continue to…

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differentials The derivative method is a method of obtaining the amount of change at a point of a graph f(x). This is similar to the process of finding the tangent slope at…

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Triangle Regular Triangle The lengths of the three sides and the angles are the same. The size of each of the three angles is 60 °. It is the only triangle in…

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Pythagorean Theorem When the three sides of a right triangle are a, b, and c, and the longest side is c, the following equation is always true. The areas of a square…

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Geometric sequence is The geometric sequence is a sequence in which each term has a constant(common) ratio to its preceding term. For example, the geometric sequence with the first term ‘a’ and…

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Fourier series A Fourier series is a way to represent a function as the sum of simple sine waves. A simple trigonometric function consists of a smooth surface. If you continue to…

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Fourier series A Fourier series is a way to represent a function as the sum of simple sine waves. A simple trigonometric function consists of a smooth surface. If you continue to…

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There are 10 black stones and 10 white stones in your pocket. What is the distribution of the number of black stones when I take out 10 randomly? Normal distribution Gauss in…

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In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically 0(zero) and 1(one).