How to Evaluate Mathematical Formulas in Go?
Posted on 2025-03-23
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Evaluating Formulas in Go
To evaluate mathematical formulas in Go, it's recommended to use an external package that provides pre-defined functions and operators. One popular option is govaluate:
Installing govaluate:
go get github.com/Knetic/govaluate
Formula Evaluation:
expression, err := govaluate.NewEvaluableExpression("(x 2) / 10") parameters := make(map[string]interface{}, 8) parameters["x"] = 8 result, err := expression.Evaluate(parameters)
In the above example:
- NewEvaluableExpression: Creates an instance of EvaluableExpression that represents the formula.
- parameters: A map that specifies the values to be used for the variables in the formula.
- Evaluate: Evaluates the formula using the specified parameters and returns the result as a float64.
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