Exponential Calculation:
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An exponential calculation raises a base number to the power of an exponent. It represents repeated multiplication of the base by itself exponent times. For example, 2^3 = 2 × 2 × 2 = 8.
The calculator uses the exponential formula:
Where:
Explanation: The calculation is performed using the PHP pow() function which accurately computes the result even for fractional exponents.
Details: Exponential calculations are fundamental in compound interest, population growth, radioactive decay, and many scientific and engineering applications.
Tips: Enter any real number for base and exponent. The calculator handles both positive and negative values, as well as fractional exponents.
Q1: What happens with negative exponents?
A: A negative exponent means taking the reciprocal of the positive exponent. For example, 2^-3 = 1/(2^3) = 1/8 = 0.125.
Q2: How are fractional exponents calculated?
A: Fractional exponents represent roots. For example, 4^(1/2) = √4 = 2, and 8^(1/3) = ∛8 = 2.
Q3: What's special about exponent 0?
A: Any non-zero number raised to the power of 0 equals 1. For example, 5^0 = 1.
Q4: Can the base be negative?
A: Yes, but with fractional exponents this may result in complex numbers which this calculator doesn't handle.
Q5: What's the largest/smallest number I can calculate?
A: The calculator uses PHP's float type, which typically handles numbers up to about 1.8e308 with 14-15 digit precision.