Answered: USE PYTHON Python already supports…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Concept explainers

Question

USE PYTHON

Python already supports math, whereby you can write code to add, subtract, multiply, or divide values and even variables. But let’s write a program that enables users to do math, even without knowing Python.

In a file called interpreter.py, implement a program that prompts the user for an arithmetic expression and then calculates and outputs the result as a floating-point value formatted to one decimal place. Assume that the user’s input will be formatted as x y z, with one space between x and y and one space between y and z, wherein:

x is an integer
y is +, -, *, or /
z is an integer

For instance, if the user inputs 1 + 1, your program should output 2.0. Assume that, if y is /, then z will not be 0.

Note that, just as python itself is an interpreter for Python, so will your interpreter.py be an interpreter for math!

Please see 2 attached photos for demo and Test program.

**USE PYTHON**

THANKS

Demo

```bash
$ python interpreter.py
Expression: 1 + 1
2.0
$ python interpreter.py
Expression: 4 / 3
1.3
$ python interpreter.py
Expression: 100 - 1
99.0
```

Before You Begin

Here's how to test your code manually:

- Run your program with `python interpreter.py`. Type `1 + 1` and press Enter. Your program should output:
- `2.0`

- Run your program with `python interpreter.py`. Type `2 - 3` and press Enter. Your program should output:
- `-1.0`

- Run your program with `python interpreter.py`. Type `2 * 2` and press Enter. Your program should output:
- `4.0`

- Run your program with `python interpreter.py`. Type `50 / 5` and press Enter. Your program should output:
- `10.0`

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions