Go language provides inbuilt support for basic constants and mathematical functions to perform operations on the numbers with the help of the math package. You can find the Gamma function the given value with the help of the Gamma() function provided by the math package. So, you need to add a math package in your program with the help of the import keyword to access the Gamma() function.
Syntax:
func Gamma(a float64) float64
- If Gamma(+Inf), then this method will return +Inf.
- If Gamma(+0), then this method will return +Inf.
- If Gamma(-Inf), then this method will return -Inf.
- If Gamma(a), then this method will return NaN for integer a<0.
- If Gamma(-Inf), then this method will return NaN.
- If Gamma(NaN), then this method will return NaN.
Example 1:
// Golang program to illustrate // the math.Gamma() function package main import ( "fmt"
"math"
) // Main function func main() { // Finding gamma function
// of the given values.
// Using Gamma() function
res_1 := math.Gamma(math.Inf(-1))
res_2 := math.Gamma(math.Inf(1))
res_3 := math.Gamma(0)
res_4 := math.Gamma(1)
res_5 := math.Gamma(math.NaN())
// Displaying the result
fmt.Printf( "\nResult 1: %.1f" , res_1)
fmt.Printf( "\nResult 2: %.1f" , res_2)
fmt.Printf( "\nResult 3: %.1f" , res_3)
fmt.Printf( "\nResult 4: %.1f" , res_4)
fmt.Printf( "\nResult 5: %.1f" , res_5)
} |
Output:
Result 1: NaN Result 2: +Inf Result 3: +Inf Result 4: 1.0 Result 5: NaN
Example 2:
// Golang program to illustrate // the math.Gamma() function package main import ( "fmt"
"math"
) // Main function func main() { // Finding gamma function
// of the given values.
// Using Gamma() function
nvalue_1 := math.Gamma(2)
nvalue_2 := math.Gamma(4)
// Sum of the given numbers
res := nvalue_1 + nvalue_2
fmt.Printf( "%.2f + %.2f = %.2f" ,
nvalue_1, nvalue_2, res)
} |
Output:
1.00 + 6.00 = 7.00
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