28 lines
505 B
Go
28 lines
505 B
Go
package main
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import (
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"fmt"
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"os"
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"strconv"
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)
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func main() {
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if len(os.Args) != 2 {
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fmt.Println("Usage: k <Kelvin>")
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return
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}
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k, err := strconv.ParseFloat(os.Args[1], 64)
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if err != nil {
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fmt.Println(err)
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return
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}
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if k < 0 {
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fmt.Println("Kelvin must be >= 0.")
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return
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}
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fmt.Printf("K %.2f\n", k)
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fmt.Printf("C %.2f\n", k-273.15)
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fmt.Printf("F %.2f\n", k*9/5-459.67)
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fmt.Printf("R %.2f\n", k*9/5)
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}
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