________________________________ This hands-on practice.
Number and expression
Interactive Python interpreter can be used as a powerful calculator.
Result of the division as a decimal, i.e., floating-point (float or floating-point number).
If you want to discard the fractional part, i.e. performing integer division, can be double slash:
Here we introduce a power (exponentiation) operator:
Variable (variable) && assignment (assignment)
Without knowing the value of a variable you can use them when writing programs.
An interesting example:
Functions like a small program that can be used to perform certain operations.
Getting primer:
E.g:
abs calculates an absolute value. round rounded, floating-point number rounded to the nearest integer therewith.
# My compiler the somewhat iffy: round (2 // 3) should = 1.0
Modules can be considered extensions.
In case of determining not imported from a plurality of different functions with the same name of the module case, and in many but not all cases, may be used as the import command variants:
from module import function
Python itself provides support for complex numbers.
Almost all real Python program has a string figure.
Introduction:
Python supports both single and double quotes.
You can get a glimpse:
Strings are spliced :
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