2020-02-13 23:11:13 +03:00
|
|
|
# GoMathExecutor [](https://godoc.org/github.com/neonxp/GoMathExecutor) [](https://travis-ci.org/neonxp/GoMathExecutor) [](https://codecov.io/gh/neonxp/GoMathExecutor)
|
2020-02-13 22:55:13 +03:00
|
|
|
|
|
|
|
|
Package GoMathExecutor provides simple expression executor.
|
|
|
|
|
|
|
|
|
|
## Installation
|
|
|
|
|
|
|
|
|
|
`go get github.com/neonxp/GoMathExecutor`
|
|
|
|
|
|
|
|
|
|
## Usage
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
calc := executor.NewCalc()
|
|
|
|
|
calc.AddOperators(executor.MathOperators) // Loads default MathOperators (see: defaults.go)
|
|
|
|
|
calc.Prepare("2+2*2") // Prepare expression
|
|
|
|
|
calc.Execute(nil) // == 6, nil
|
|
|
|
|
calc.Prepare("x * (y+z)") // Prepare another expression with variables
|
|
|
|
|
calc.Execute(map[string]float64{
|
|
|
|
|
"x": 3,
|
|
|
|
|
"y": 2,
|
|
|
|
|
"z": 1,
|
|
|
|
|
}) // == 9, nil
|
|
|
|
|
```
|
