Web-Based Basic Arithmetic Calculator

I'm looking for a freelancer to develop a basic arithmetic calculator for the web. This calculator should be user-friendly and aesthetically pleasing.

Key Features:
- Basic arithmetic operations: Addition, Subtraction, Multiplication, Division.
- Graphing capabilities: The calculator should be capable of plotting simple equations on a graph.

The ideal candidate for this project should have:
- Proven experience in web development.
- Skills in JavaScript, HTML, and CSS.
- Experience in creating interactive web applications.
- Prior experience with developing calculators or similar projects is a plus.

Please provide examples of your previous work with interactive web applications in your proposal.