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 least integer value greater than or equal to the specified number with the help of the Ceil() 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 Ceil() function.
Syntax:
func Ceil(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 illustrate how to find // the least integer value greater than or // equal to the specified number package main import ( "fmt"
"math"
) // Main function func main() { // Finding the least integer value
// greater than or equal to the
// given number
// Using Ceil() function
res_1 := math.Ceil(math.Pi / 2)
res_2 := math.Ceil(34.567)
res_3 := math.Ceil(-12.34)
// 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: 2.0 Result 2: 35.0 Result 3: -12.0
Example 2:
// Golang program to illustrate how to find // the least integer value greater than or // equal to the specified number package main import ( "fmt"
"math"
) // Main function func main() { // Finding the least integer value
// greater than or equal to the
// given number
nvalue_1 := math.Sin(math.Pi / 4)
nvalue_2 := math.Sin(math.Pi / 6)
res := nvalue_1 + nvalue_2
fmt.Printf( "%.1f + %.1f = %.1f" ,
nvalue_1, nvalue_2, res)
fmt.Println( "\nRound off the result: " ,
math.Ceil(res))
} |
Output:
0.7 + 0.5 = 1.2 Round off result: 2
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