Sage/First Steps

Run

Commandline Interface

In Ubuntu terminal:

> ./sage
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 8.1, Release Date: 2017-12-07                     │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
> sage:

Notebook Interface

Inside Sage type "notebook()" for the browser-based notebook interface.

> sage: notebook()

Introduction

Sage is based on Python. With some exceptions, all commands are regular Python syntax.

Very simple calculation

• Numbers

 > sage: 1+1
 > 2

• Symbolic expression

 > sage: sqrt(2)
 > sqrt(2)

• Evaluate a symbolic expression

 > sage: sqrt(2).n(digits=100)
 > 1.414213562373095048801688724209698078569671875376948073176679737990732478462107038850387534327641573

Arrays

 > sage: a = [1,2,3]
 > sage: sum(a)
 > 6