take the arcsine of a number in go

To take the arcsine of a number in Go, you can use the math.Asin() function from the math package. This function returns the arcsine of a given float64 value in radians.

Here's an example code snippet:

main.go
package main

import (
    "fmt"
    "math"
)

func main() {
    x := 0.5
    // convert x from degrees to radians
    x = x * math.Pi / 180
    result := math.Asin(x)
    // convert result back to degrees
    result = result * 180 / math.Pi
    fmt.Printf("The arcsine of %f is %f degrees\n", x, result)
}
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In this example, we first define the input value x as 0.5, which represents the sine value that we want to find the arcsine for.

Next, we convert x to radians by multiplying it by math.Pi divided by 180. This conversion is needed because the math.Asin() function expects its input to be in radians.

We then apply the math.Asin() function to x and store the result in the result variable. After that, we convert result back to degrees by multiplying it by 180 and dividing by math.Pi.

Finally, we print out the resulting arcsine value in degrees using fmt.Printf().