# Scientific Calculator

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## How to use this Calculator ?

 sin, cos, tan, asin, acos, atan Usual trigonométric functions. Select angle unit at the top left : Rad (for radian) or Deg (for degree). EXP (Exponent) Allows to enter powers of 10. Example : enter 5 EXP 6, the calculator displays 5E6 = 5 x 106 = 5 000 000. mod Calculates arithmetic operation modulo. Example : enter 41 mod 3, the calculator displays 41 mod 3 = 2 which is the remainder of euclidean division of 41 by 3. xy Calcules a number powers. Example : enter 3 xy 5, the calculator displays 3^5 = 35 = 245 ln and log : Calculates neperian and 10 based logarithms (ln and log). Example log 1000 or ln 56. ex Calculates exponential function. Example enter ex 10 which displays exp(10) = exponential of 10 = 22026.465794806718. Rand : Generates a random number between 0 and 1. To get a random number between 0 and N, multiply the generated number by N. 10x Allows to enter powers of 10. Example enter 10x (4-2) which displays 10^(4-2) = 100. x2 Calculates a number square. Example, enter 10 x2 , the calculator displays 10^2 = 100. √ and 3√ Calculates square and cubic root. Example √(16) = 4. n! Calculates a whole number factorial. Example, enter n! 5 , the calculator displays fact(5) = 120. Touches pi and e To enter constants pi = 3.141592653589793 and e = 2.718281828459045.