指数( Power) 计算器
将任何基地提升到任何权力,包括负和分数的先锋。
输入结果时更新 。
关于此计算器
An exponent calculator raises a base to a power — repeated multiplication of the base by itself. Enter the base and the exponent and it returns the result, the value in scientific notation when it is very large or small, and, for small whole exponents, the expanded multiplication so you can see where the answer comes from.
A whole exponent means "multiply the base by itself this many times": 2^10 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = 1024. Any non-zero base to the power 0 is 1, and to the power 1 is the base itself. A negative exponent is the reciprocal of the positive power — 2^−3 = 1 ÷ 2^3 = 1/8 = 0.125 — and a fractional exponent is a root, so 8^(1/3) is the cube root of 8, which is 2.
Exponents underpin compound interest, scientific notation, area and volume scaling, exponential growth and computer science. A negative base raised to an even exponent is positive and to an odd exponent is negative: (−2)^3 = −8 but (−2)^4 = 16.
经常问到的问题
消极的推论是什么意思?
A negative exponent is the reciprocal of the positive power. 2⁻³ = 1 ÷ 2³ = 1/8 = 0.125.
什么是分数的先锋?
分数前奏是根 : x(1/2) 是 x 的平方根, x(1/3) 是立方根。 所以 8(1/3) = 2。
零的力量有多少数字?
任何非零基升到0等于1. 升到1使基数不变。
What is 2 to the 10th power?
Multiply 2 by itself ten times: 2^10 = 1024. That is the default example this tool shows.
基数会不会是负的?
是的,带有甚至推算值的负基是正数,而带有奇数推算值是负数:(-2)4=16,但(-2)3=-8。
如何显示非常大的能量?
They are also shown in scientific notation for readability — for instance 2^40 is about 1.0995 × 10^12.
API - 使用代码中的计算器
将此计算器称为自由 JSON 端点 。 不需要按键 。 将字段值发送到下面作为查询参数或 JSON 。 任何您省略的, 都会使用相同的默认值, 此页面预填的默认值是预填的; 未知参数是 400, 而不是静音零 。 读取 API 全部文件 →
终点
GET https://calculator.free/api/v1/exponent/curl
curl "https://calculator.free/api/v1/exponent/?base=2&exponent=10"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/exponent/?" + new URLSearchParams({
"base": "2",
"exponent": "10"
}));
const data = await r.json();
console.log(data.results);成果仅是一般指导的估计数,而不是财务、医疗或税务咨询。