Vial's Calculator

Design Document

Design Document.pdf

Getting Started

• run: npm i in both client and server folders
• run: docker-compose up in terminal
• run: knex migrate:latest to get PSQL DB up to date
• go to localhost:3000 in browser to view the application
• to run tests, go to client folder and run npm test to run the calculator tests

Requirements

• The calculator should have a browser-based user interface (ie it can be opened using a web browser)
• The calculator should have a number pad with digits 0-9 and decimal point.
• The calculator should have buttons for addition, subtraction, multiplication, and division.
• The calculator should have a display that shows the input and the result of the calculation.
• The calculator should follow the order of operations (PEMDAS).
• The calculator should have a way to sign up with a username and password
• The calculator should have a way to log in with username and password
• The calculator should be usable with or without authentication
• The calculator should have a navigation bar or panel which displays the user’s authentication status

The calculator should have the following features:

• Memory functions (M+, M-, MR, MC)
• Percentage function (%)
• Square root function (√)
• Exponential function (^)
• History function

Screen Shots

Technology

React, TypeScript, Formik, Material UI, JavaScript, Knex, Express, Node, PSQL