#POWERS WITH NEGATIVE EXPONENTS HOW TO#

#POWERS WITH NEGATIVE EXPONENTS HOW TO#

Hence if you know how to compute (a^b) you just need to take the reciprocal to get the desired result. It is just a matter of conventions and definition that in mathematics (ie ^ is exponentation here) a ^ (-b) = 1 / (a^b) Ex: 6^-2 = 1/(6^2).'Īnd this: 'Well that's because in C++ the ^ is the bitwise xor operator.you will need to use the pow() in order to do it.' All you have to do is divide 1 over the positive exponent. I did some searching online and found this: 'To represent a negative exponent. These Exponents Worksheets are a good resource for students in the 5th Grade through the 8th Grade. Here is what i tried: else if (exponent < 0) These Algebra 1 - Exponents Worksheet produces problems for working with Exponents with Multiplication and Division. Exponent worksheets including an introduction to exponents, reading and writing simple exponents, powers of ten, whole number, fractional and decimal bases, negative exponents and equations with exponents. i cant get the working without using POW) if (exponent = 0)Ĭout << 'The answer is ' << 1 << ' because the exponent value entered was 0' << endl įor a more challenging version, deal with the case where the exponent is negative. Use an if statement for the special case where the output is 1 if the int value is 0. Outputs the exponential value calculated. That sounds complicated, but all it means. Multiplies the base number by itself using a loop that repeats for the number of times in the int while (exponent != 0) Negative Exponents Exponents are also called Powers or Indices Let us first look at what an 'exponent' is: The exponent of a number says how many times to use the number in a multiplication. A number raised to a negative power is equivalent to the reciprocal of the number raised to the opposite of the power. inputs a double as the base number and an int as the exponent double base, ans = 0 For example, 2 raised to the power 4 can be calculated by multiplying 2 by itself 4 times to get 16.

Powers of numbers can be calculated by multiplying the number by itself for as many times as the value of the exponent. Hey guys i'm working through a book and i'm little baffled with the sub objective of the following question.

Powers with negative exponents