DETAILED DESCRIPTION:
The "MG40 Calculator" is an innovative software application designed for universal accessibility. Its core innovation lies in its input interface: an **ergonomic 4-button combination keyboard** that breaks away from traditional standards. This system allows toggling between standard Braille and the **1-6 VR2FG (PRD) System**, a **proprietary and exclusive innovation of the author**.
Key Features:
1. 4-Button Keyboard: Simplified interface generating all combinations via chords and sequences.
2. Proprietary PRD System: An innovative logical system (author's property) optimized for digital environments, superior to traditional Braille in mathematical logic.
3. Dual Input: Instant toggle between Braille and PRD.
4. Multimodal Feedback: TTS Audio and haptic response.
5. Multifunctional Enter Bar: Gestural control for confirmation.
This work protects the Interface Design (GUI), the implemented PRD logical system, and the source code in Dart/Flutter.
All rights reserved