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Using modular multiplication rules: i.e. A^2 mod C = (A * A) mod C = ( (A mod C) * (A mod C) ) mod C We can use this to calculate 7^25...
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A tank containing oil is in the shape of a downward-pointing cone with its vertical axis perpendicular to ground level. In this exercise w...
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A vector has magnitude (how long it is) and direction : Unit Vector A Unit Vector has a magnitude of 1 : The symbol is...
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https://en.wikipedia.org/wiki/Coupon_collector%27s_problem the coupon collector's problem describes the "collect all coupons an...
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http://www.cr173.com/html/18295_1.html 第一种、第二种模型 分析右上角的的2，其周围的未知块a,b两块，等于其周围雷数，故可判断出a,b都是雷；接下来，分析下面的2，其周围共有3个未显示的块a,b,c，其中a,b已判断出为雷，即...
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How to find the area of the triangle formed by joining the three given points? (A) In Terms of Rectangular Cartesian Co-ordinates: Let...
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Sørensen's original formula was intended to be applied to presence/absence data, and is where A and B are the number of specie...
