Example entries -42 or (-4)2 will result in different answers.
Note that -42 = -1 * 4 * 4 = -16 while (-4)2 = (-4) * (-4) = 16. See notes below.
This is an online calculator with exponents. It will handle powers of large integers and decimals. You can also use large exponents, negative exponents, and decimal exponents.
"When a minus sign occurs with exponential notation, a certain caution is in order. For example, (-4)2 means that -4 is to be raised to the second power. Hence (-4)2 = (-4) * (-4) = 16. On the other hand, -42 represents the additive inverse of 42. Thus -42 = -16. It may help to think of -x2 as -1 * x2 ..."
xm * xn = xm+n
xm / xn = xm-n
(xm)n = xm*n
(x * y)m = xm * ym
(x / y)m = xm / ym
x-m = 1 / xm
(x / y)-m = ym / xm
x1 = x
x0 = 1
00 = 1 (definition)
If xm = y then y = m√y = y(1/m)
xm/n = n√xm
 Algebra and Trigonometry: A Functions Approach; M. L. Keedy and Marvin L. Bittinger; Addison Wesley Publishing Company; 1982, page 11.
For more detail on Exponent Theory see http://mathworld.wolfram.com/ExponentLaws.html
To calculate fractional exponents use our Fractional Exponents Calculator.
To calculate root or radicals use our Roots Calculator.