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math.Remainder() Function in Golang With Examples

  • Last Updated : 13 Apr, 2020

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 remainder or the IEEE 754 floating-point remainder of a/b with the help of Remainder() 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 Remainder() function.

Syntax:

func Remainder(a, b float64) float64
  • If you pass -Inf or +Inf in this function like Remainder(-Inf, b) or Remainder(+Inf, b), then this function will return NaN.
  • If you pass NaN in this function like Remainder(NaN, b), then this function will return NaN.
  • If you pass b=0 in this function like Remainder(a, 0), then this function will return NaN.
  • If you pass -Inf or +Inf in this function like Remainder(a, -Inf) or Remainder(b, +Inf), then this function will return a.
  • If you pass NaN in this function like Remainder(a, NaN), then this function will return NaN.

Example 1:




// Golang program to illustrate
// math.Remainder() Function
package main
  
import (
    "fmt"
    "math"
)
  
// Main function
func main() {
  
    // Finding remainder
    // Using Reminder() function
    res_1 := math.Remainder(36, 5)
    res_2 := math.Remainder(-100, 100)
    res_3 := math.Remainder(45.6, 8.9)
    res_4 := math.Remainder(math.NaN(), 67)
    res_5 := math.Remainder(math.Inf(1), 67)
  
    // Displaying the result
    fmt.Printf("Result 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: 1.0
Result 2: -0.0
Result 3: 1.1
Result 4: NaN
Result 5: NaN

Example 2:




// Golang program to illustrate
// math.Remainder() Function
package main
  
import (
    "fmt"
    "math"
)
  
// Main function
func main() {
  
    // Finding remainder
    // Using Remainder() function
    nvalue_1 := math.Remainder(49, 6)
    nvalue_2 := math.Remainder(56.7, 3)
  
    // Finding sum of the
    // given remainders
    res := nvalue_1 + nvalue_2
    fmt.Printf("%.2f + %.2f = %.2f",
           nvalue_1, nvalue_2, res)
  
}

Output:

1.00 + -0.30 = 0.70



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