@startuml
package "function.base" {
  interface ISin {
    +sin(x: Double, eps: Double = 1e-10): Double
  }
  interface ILn {
    +ln(x: Double, eps: Double = 1e-10): Double
  }
  class SinTaylor implements ISin
  class LnTaylor implements ILn
}

package "function.trigonometric" {
  class Cos implements ICos
  class Csc implements ICsc
  class Sec implements ISec
  class Cot implements ICot
  Cos --> ISin
  Csc --> ISin
  Sec --> ISin
  Cot --> ISin
}

package "function.logarithmic" {
  class Log implements ILog
  Log --> ILn
}

package "function.stubs" {
  class SinStub implements ISin
  class LnStub implements ILn
  class CosStub implements ICos
  class CscStub implements ICsc
  class SecStub implements ISec
  class CotStub implements ICot
  class LogStub implements ILog
}

class FunctionSystem {
  -sinImpl: ISin
  -lnImpl: ILn
  -cosImpl: ICos
  -cscImpl: ICsc
  -secImpl: ISec
  -cotImpl: ICot
  -logImpl: ILog
  +compute(x: Double, eps: Double = 1e-10): Double
}

FunctionSystem --> ISin
FunctionSystem --> ILn
FunctionSystem --> ICos
FunctionSystem --> ICsc
FunctionSystem --> ISec
FunctionSystem --> ICot
FunctionSystem --> ILog

package "util" {
  class CsvWriter {
    +writeToCsv(filename: String, data: List<Pair<Double,Double>>, label: String)
  }
}

Main --> FunctionSystem
Main --> CsvWriter
@enduml