Calculator web application -- 2

Job ID: 33375780

Budget: ₹1,500 – ₹12,500 INR

I want a person wo can make my calculator application using .net core using API, with HTML and CSS. in this app i want to add three new features like if user press from the button 9 from keyboard it will generate sound like 9 after pressing .and another feature i want to add is setting tag in which 4 theme shown so user can change the calculator theme.
next feature is have one button in keypad which convert the normal calculator into scientific calculator.
download app option also add.
last 10 histories in the calculator should be visible .

this project will be done in three part in same solution firstly design and integrated testing on api should be done on 8 april.
second and third part will be needed after the week and project should be completed before 18 april.
and i have to submit these projects on my Github in these three part. don't change solution just add requirements in solution in these three parts. and
project should not be on github already .
Related categories: CSS C# Programming HTML .NET Core Web API