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08-numbers-and-strings/01-numbers/02-arithmetic-operators-examples/01/main.go

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+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("sum :", 3+2)   // sum - int
+	fmt.Println("sum :", 2+3.5) // sum - float64
+	fmt.Println("dif :", 3-1)   // difference - int
+	fmt.Println("dif :", 3-0.5) // difference - float64
+	fmt.Println("prod:", 4*5)   // product - int
+	fmt.Println("prod:", 5*2.5) // product - float64
+	fmt.Println("quot:", 8/2)   // quotient - int
+	fmt.Println("quot:", 8/1.5) // quotient - float64
+
+	// remainder is only for integers
+	fmt.Println("rem :", 8%3)
+	// fmt.Println("rem:", 8.0%3) // error
+
+	// you can do this
+	// since the fractional part of a float is zero
+	f := 8.0
+	fmt.Println("rem :", int(f)%3)
+}