How to Find the Sin and Cos Value of a Number in Golang? Last Updated : 21 Apr, 2020 Comments Improve Suggest changes Like Article Like Report 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 value of sin and cos of the specified number with the help of Sincos() 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 Sincos() function. Syntax: func Sincos(a float64) (sin, cos float64) If you pass -Inf or +Inf in this function like Sincos(-Inf) or Sincos(+Inf), then this function will return NaN, NaN. If you pass -0 or +0 in this function like Sincos(-0) or Sincos(+0), then this function will return -0 or +0, 1. If you pass NaN in this function like Sincos(NaN), then this function will return NaN, NaN. Example 1: C // Golang program to illustrate the Sincos() Function package main import ( "fmt" "math" ) // Main function func main() { // Using Sincos() function res_1, res_2 := math.Sincos(math.Pi / 3) res_3, res_4 := math.Sincos(0) res_5, res_6 := math.Sincos(math.Inf(-1)) res_7, res_8 := math.Sincos(math.NaN()) res_9, res_10 := math.Sincos(math.Pi) // Displaying the result fmt.Printf("Result 1: %.1f, %.1f", res_1, res_2) fmt.Printf("\nResult 2: %.1f, %.1f", res_3, res_4) fmt.Printf("\nResult 3: %.1f, %.1f", res_5, res_6) fmt.Printf("\nResult 4: %.1f, %.1f", res_7, res_8) fmt.Printf("\nResult 5: %.1f, %.1f", res_9, res_10) } Output: Result 1: 0.9, 0.5 Result 2: 0.0, 1.0 Result 3: NaN, NaN Result 4: NaN, NaN Result 5: 0.0, -1.0 Example 2: C // Golang program to illustrate the Sincos() Function package main import ( "fmt" "math" ) // Main function func main() { // Using Sincos() function nvalue_1, nvalue_2 := math.Sincos(math.Pi / 2) nvalue_3, nvalue_4 := math.Sincos(math.Pi / 3) // Sum of the given sin values res1 := nvalue_1 + nvalue_3 fmt.Println("Sum of Sin Values:") fmt.Printf("%.2f + %.2f = %.2f\n", nvalue_1, nvalue_3, res1) // Sum of the given cos values res2 := nvalue_2 + nvalue_4 fmt.Println("Sum of Cos Values:") fmt.Printf("%.2f + %.2f = %.2f", nvalue_2, nvalue_4, res2) } Output: Sum of Sin Values: 1.00 + 0.87 = 1.87 Sum of Cos Values: 0.00 + 0.50 = 0.50 Comment More infoAdvertise with us Next Article Go Programming Language (Introduction) K Kirti_Mangal Follow Improve Article Tags : Go Language Similar Reads Go Tutorial Go or you say Golang is a procedural and statically typed programming language having the syntax similar to C programming language. 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