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FutureStarrHow to Raise Power in Scientific Calculator OR
One of the applications that a scientific calculator is used for is when doing the long division method. This is a much more efficient method for calculating large numbers than the traditional method of doing long division.
Let's review. Exponents are numbers that other expressions or numbers are raised to, indicating the number of times that an expression or number is multiplied by itself. A scientific calculator is a device used to perform operations that are more advanced than simple addition, subtraction, multiplication, and division. When using a scientific calculator to compute xy, the most common keystrokes are as follows:
The log is the inverse function of raising a number by a power. It takes the input number (base) and the output number and calculates which number the base must be raised to the power of to produce the output -- e.g. x^n=y --> logy(x) = n (the y would be given in subscript) and this is stated "Log base y of x equals n." If you have a modern calculator, there should be a log button with two blank rectangles allowing you to input the base and the output to find the power. On an older calculator, however, you will need to use a "log-law" to convert it into an equation involving the log function (meaning log base 10). Do this by typing logy/logx to give answer n. It is also possible to compute exponents with negative bases. They follow much the same rules as exponents with positive bases. Exponents with negative bases raised to positive integers are equal to their positive counterparts in magnitude, but vary based on sign. If the exponent is an even, positive integer, the values will be equal regardless of a positive or negative base. If the exponent is an odd, positive integer, the result will again have the same magnitude, but will be negative. While the rules for fractional exponents with negative bases are the same, they involve the use of imaginary numbers since it is not possible to take any root of a negative number. An example is provided below for reference, but please note that the calculator provided cannot compute imaginary numbers, and any inputs that result in an imaginary number will return the result "NAN," signifying "not a number." The numerical solution is essentially the same as the case with a positive base, except that the number must be denoted as imaginary. (Source: www.calculator.net)