Module 1 - Section 1 - Output: 1.1.2 - Printing Results of Expressions

Module 1 - Section 1 - Output

View

After the completion of this module the students will be able to:

complete commands to send to the output
construct a command for multiple output
state and use Escape Codes
create comments
use arithmetic operators

1.1.2 - Printing Results of Expressions

This next program does not have quotes around 2+3, and the computer will evaluate it, as a mathematical expression. It will print 5 rather than 2+3.

>>> print(2 + 3)

The code below will generate an error because the computer will try to evaluate “Hello World” as a mathematical expression, and that doesn't work at all:

>>> print(Hello World)

The code above will print out an error SyntaxError: invalid syntax which is computer-speak for not knowing what “Hello” and “World” mean.

Try to print the output of other expressions using the CLI.