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数学

指数 计算器

指数计算器

变量说明

b= basen= exponentbⁿ= result

Exponent rules

Fundamental laws of exponents.

Product
Quotient
Power
Zero exponent
Negative exponent

Fractional exponents

Fractional exponents are roots.

Scientific notation

Express very large or small numbers.

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专业提示

For quick mental powers of 2: memorise up to 2^10 = 1024. Then: 2^20 ≈ 1 million, 2^30 ≈ 1 billion, 2^40 ≈ 1 trillion.

难度:初级

你知道吗?

If you folded a piece of paper in half 42 times, it would reach from Earth to the Moon. This is 2^42 ≈ 4.4 trillion thicknesses — exponential growth is mind-bending.

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