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 are allowed to find the greatest integer value less than or equal to the specified number with the help of Floor() 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 Floor() function.
Syntax:
func Floor(y float64) float64
- If you pass +Inf or -Inf in this function, then this function will return +Inf or -Inf.
- If you pass +0 or -0 in this function, then this function will return +0 or -0.
- If you pass NaN in this function, then this function will return NaN.
Example 1:
// Golang program to find out the floor value package main import ( "fmt"
"math"
) // Main function func main() { // Finding the greatest integer value
// less than or equal to the
// specified number
// Using Floor() function
res_1 := math.Floor(4.7)
res_2 := math.Floor(-8.976)
res_3 := math.Floor(0.687997)
// Displaying the result
fmt.Printf( "Result 1: %.1f" , res_1)
fmt.Printf( "\nResult 2: %.1f" , res_2)
fmt.Printf( "\nResult 3: %.1f" , res_3)
} |
Output:
Result 1: 4.0 Result 2: -9.0 Result 3: 0.0
Example 2:
// Golang program to find out the floor value package main import ( "fmt"
"math"
) // Main function func main() { // Finding the greatest integer value
// less than or equal to the
// specified number
// Using Floor() function
nvalue_1 := 3.4556775
nvalue_2 := 23.564646
res := nvalue_1 + nvalue_2
fmt.Printf( "%.5f + %.5f = %.5f" ,
nvalue_1, nvalue_2, res)
fmt.Println( "\nGreatest integer value: " ,
math.Floor(res))
} |
Output:
3.45568 + 23.56465 = 27.02032 Greatest integer value: 27
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