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main.go
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main.go
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// Package main: A simple interface for evaluating expressions.
package main
import (
"bufio"
"fmt"
"os"
"strconv"
"github.com/yasteen/go-parse/mathgroups/real"
"github.com/yasteen/go-parse/run"
)
func main() {
scanner := bufio.NewScanner(os.Stdin)
fmt.Println("What expression do you want to evaluate? (In terms of x)")
var expression string
if scanner.Scan() {
expression = scanner.Text()
}
fmt.Println("What value do you want x to be?")
var val float64
var err error
if scanner.Scan() {
val, err = strconv.ParseFloat(scanner.Text(), 64)
}
fmt.Println("Read value", val)
if err != nil {
fmt.Println("Bad values :(")
}
runnableReal := run.GetRunnableMathGroup(real.Real)
fmt.Println(runnableReal.MapValues(expression, *real.NewInterval(val, 2, val+1), "x"))
}