Calculator

Calculator app for alexa.
Currently supports addition, subtraction, multiplication and division. Can also handle complex decimal calculations.
It also keeps your current answer in context so that you can operate on it.
If you need to check your calculations, it'll also read out the calculation history for you. Just say, tell me the calculation history.
Sample Utterances:
For Addition - What's five point nine plus three; Add two point nine to the answer.
For Subtraction - What is five point nine minus three; Subtract two point nine from the answer.
For Multiplication - What is five point nine multiplied by three; Multiply two point nine by the answer.
For Division - What's five point nine divided by three; Divide the answer by two point nine.

Features coming soon:
- Nth power and Nth root
- Logarithmic operations
- Trigonometric operations
- Saving answers to memory
- Power or e, power of 10, power of 2
- Degree and radian conversions
and many more!