Problem : Your program uses flag.Parse() function to parse the command line arguments and everything is working fine until you attempted to parse a negative value, For example, such as calculating quadratic equation. ./program -3.0 1.0 This will cause the flag.Parse() function to recognize it a flag parameter instead of negative value. How to fix this? Solution : Use os.Args instead of flag.Parse. For example, change flag.Parse() arg := flag.Arg(0) to arg := os.Args Happy coding and hope this helps!
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