Use the math.Pow10 function to raise the specified number to the power of base 10

Use the math.Pow10 function to calculate the base 10 power of a specified number

In mathematical operations, it is often necessary to calculate a certain power of a number. For calculations of powers with base 10, the math package in the Go language provides a very convenient function math.Pow10. This article will introduce how to use the math.Pow10 function to calculate the base 10 power of a specified number and provide corresponding code examples.

The prototype of the math.Pow10 function is defined as follows:

func Pow10(n int) float64

This function receives an integer parameter n, indicating the size of the exponent. The function returns a result of type float64, which is base 10 raised to the nth power.

The following is a sample code that shows how to use the math.Pow10 function to calculate the base 10 power of a specified number:

package main

import (
    "fmt"
    "math"
)

func main() {
    var num float64
    var exponent int

    fmt.Print("请输入一个数字：")
    fmt.Scanln(&num)

    fmt.Print("请输入指数大小：")
    fmt.Scanln(&exponent)

    result := math.Pow10(exponent) * num
    fmt.Printf("以10为底的%d次方的结果为：%f
", exponent, result)
}

In the above code, first declare two The variables num and exponent are used to store the number and exponent size entered by the user respectively. Next, use the fmt.Scanln function to read the user-entered number and exponential size from standard input respectively.

Then, by calling the math.Pow10(exponent) function, calculate the exponent power with base 10. Multiply it with num to get the final result.

Finally, use the fmt.Printf function to output the result, where the exponential size and calculation result are combined using the %d and %f format string output.

Compile and run the above code, you can get the following output:

请输入一个数字：4
请输入指数大小：3
以10为底的3次方的结果为：4000.000000

This means that 4 raised to the third power of base 10 is equal to 4000.

To summarize, by using the math.Pow10 function, we can easily calculate the base 10 power of a number. This provides great convenience for mathematical problems involving exponential calculations. I hope the content of this article is helpful to you.

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