Fern.kt

    fun newX(function: String, i: Int): Float {
        val a = matrix[function]!![A]!!
        val b = matrix[function]!![B]!!
        val e = matrix[function]!![E]!!

        return (a * getX(i) + b * getY(i) + e)
    }

    fun newY(function: String, i: Int): Float {
        val c = matrix[function]!![C]!!
        val d = matrix[function]!![D]!!
        val f = matrix[function]!![F]!!

        return (c * getX(i) + d * getY(i) + f)
    }