I'm creating an Angular application, and I'd like to create a virtual mathematical symbols virtual keyboard to allow users to select the math symbols. Because many math symbols are unavailable from the normal keyboards. What I want to achieve is like the screenshots below: enter image description here
See the "Custom: Mapped Keys" example on this website: https://mottie.github.io/Keyboard/. I have used this library in the past with good success. GitHub project. There are instructions there for installing using npm: npm i virtual-keyboard.
