How to convert a float64 to a string with scientific notation using strconv in Golang?

To convert a float64 to a string with scientific notation using strconv in Golang, you can use the FormatFloat function along with the 'e' format specifier.

Here's an example:

package main

import (
	"fmt"
	"strconv"
)

func main() {
	num := 1234567.89

	str := strconv.FormatFloat(num, 'e', -1, 64)
	fmt.Println(str)
}

This will output:

1.23456789e+06

In the FormatFloat function, the first argument is the float64 value you want to convert, the second argument is the format specifier 'e' which represents the scientific notation, the third argument of -1 represents the significant digits, and the fourth argument of 64 represents the bit size (float64 in this case).

You can adjust the significant digits and bit size based on your specific requirements.