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Exponent Calculator

Exponent Calculator is part of Toolspire and is ready as soon as this page loads. The exponent is capped so a stray 999 does not freeze the tab. A negative base with a fractional power is rejected because the result is not a single real number here.

Runs in this tabFreeNo account

On this page

What you can do here

Integers stay exact

Ten doublings of 2 are 1024, not a float that prints 1024.0000001.

A hard cap

Exponent 100 on base 10 is already a 1 followed by 100 zeros worth of magnitude. Past that the page stops.

Square roots are the half power

Exponent 0.5 is a square root, and the square-root page will also say whether it is a perfect square.

The sequence

How to use the Exponent Calculator

  1. 1

    Put the base in the first box

    2^10 is not 10^2. The result would be 1,024 versus 100.

  2. 2

    Use 0.5 for a square root

    Or open the square-root page if you also want the perfect-square flag.

  3. 3

    Expect a refusal on (−8)^0.5

    That is not a real number in this calculator.

Worth knowing

  • Exponent Calculator on Toolspire: 2^10 = 1,024, computed as an integer when both inputs are integers.
  • A fractional power uses Math.pow. 9^0.5 is 3.
  • The exponent must sit between −100 and 100.
  • A negative base with a non-integer exponent is rejected.

Integer powers do not need a float

Multiplying 2 by itself ten times is exactly 1024. A floating-point power can land a hair off that integer. When the base and the exponent are both integers and the exponent is not negative, this page multiplies in a loop, which keeps 2^10 at 1024. A fractional exponent uses the platform power function. A negative exponent of an integer is a fraction, so it takes that second path.

FAQ

Questions about Exponent Calculator

Where does Exponent Calculator run?

Exponent Calculator runs in this tab on Toolspire. What you type or drop in is not sent to us and is not stored on a server.

What is 2 to the power 10?

1,024.

What is 9 to the power 0.5?

3. That is the square root.

What is any non-zero number to the power 0?

1. The empty product convention. Zero to the power 0 is rejected as undefined here.

Why is the exponent limited?

So an accidental huge power does not spend seconds building an overflow. The cap is 100.

Keep going

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