MEE

MEE Math Expression Evaluator

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Examples

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Example 1 :

// create a text source from expression string
val source = TextSource("2^(2+6)*5+log(9+7-ln(6+1))")
// create compiler instance
val compiler = ClCompiler()

val result: Double = compiler.compile(source)
println("Result = $result")

Output : 
    Result = 1281.147803

Example 2 :

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see sample file

val filePath = "examples/sample.mee" // a simple Math expression script 
val source = FileSource(filePath)
val compiler = ClCompiler()
println("Result = ${compiler.compile(source)}")

For more simples take a look to tests or to Sample programme

Supported symbols

Supported	Symbol	Explanation
✅	+	Addition Operator eg. 2+3 results 5
✅	-	Subtraction Operator eg. 2-3 results -1
✅	/ , ÷	Division operator eg 3/2 results 1.5
✅	× ,*	Multiplication Operator eg. 2*3 results 6
✅	(	Opening Parenthesis
✅	)	Closing Parenthesis
✅	=	Assignment variables eg. a = 22;
✅	pi	Math constant pi returns 3.14
✅	log	logarithmic function with base 10 eg. log 1000 returns 3
✅	ln	natural log function with base e eg. ln 2 returns .3010
✅	exp	exponential function
✅	^	power operator eg. 2^3 returns 8
✅	sqrt	square root of a number eg. 4 returns 2
✅	sin	Sine function
✅	cos	Cosine function
⬜	pi	Math constant pi returns 3.14
⬜	e	Math constant e returns 2.71
⬜	tan	Tangent function
⬜	asin	Inverse Sine function
⬜	acos	Inverse Cosine function
⬜	atan	Inverse Tangent function
⬜	sinh	Hyperbolic Sine function
⬜	cosh	Hyperbolic Cosine function
⬜	tanh	Hyperbolic Tangent function
⬜	asinh	Inverse Hyperbolic Sine function
⬜	acosh	Inverse Hyperbolic Cosine function
⬜	atanh	Inverse Hyperbolic Tangent function

How to use

Step 1. Add the JitPack repository to your build file

Add it in your root build.gradle at the end of repositories:

allprojects {
    repositories {
        //...
        maven { url 'https://jitpack.io' }
    }
}

Step 2. Add the dependency

implementation 'com.github.ixiDev:MEE:$MEE_VERSION'

Replace $MEE_VERSION with last version