As a versatile and dedicated software engineer, I bring not only expansive knowledge in Java, Spring Boot, SQL, HTML, CSS but also extensive experience in utilizing Telegram API for various projects. The requirements for your Telegram Bot align perfectly with my skill set. I've built numerous telegraphy features including those similar to what you demand, such as instant responses to calculations and proficiency in mathematical operations - even when it comes to handling decimals.
In addition to being conversant with multiple programming languages, I am also proficient in using popular IDEs like Eclipse and familiar with Git for efficient project management, which I believe is paramount for a smooth collaboration and delivery.
I understand that your project expectations might evolve over time and I assure you of my capability in adapting or taking on new challenges if needed. My learning mindset enables me to stay current with state-of-the-art technologies to better serve my clients. Let's join forces and together we can create the most functional and user-friendly Telegram bot for all math purposes!