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This is the 2nd in a series of videos providing a tutorial on Python 2.7 using Anaconda Python and the Spyder IDE. Click here to go to a “home page” for the video series.
This video discusses basic arithmetic in Python (basic math operations), variable assignment, transcendental functions (like exp) using the math module, and logicals (including comparison).
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The video is about 24 minutes long.
Video Index: Basic Arithmetic and Variable Assignment
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Click on the topics below to jump to that location in the video.
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| Time | Topic |
| 00:00 | Introduction |
| 00:35 | Launching the Spyder IDE |
| 01:32 | Making the iPython console large |
| 01:49 | Showing the Variable Explorer window |
| 02:05 | Basic Arithmetic Introduction |
| 02:17 | Addition Example |
| 02:22 | Multiplication Example |
| 02:27 | Order of precidence |
| 02:29 | Power (exponentiation) operator |
| 03:17 | Caclulating roots using the power operator |
| 03:34 | Integer division (unexpected behavior) |
| 04:18 | Making floating point numbers using the decimal point |
| 04:47 | Types of numbers with “type()” |
| 05:12 | Conversion of integers to floting point numbers in mixed expressions |
| 05:43 | Advice: Write math expressions in decimals |
| 06:19 | Summary of arithmetic in Python |
| 06:40 | Assigning variables |
| 06:54 | Variables are shown in the Variable Explorer window |
| 07:17 | Print the value of a variable |
| 07:34 | Print the value of a variable with the “print” statement |
| 07:42 | Changing the value of a variable with the Variable Explorer window |
| 08:19 | Arithmentic with variables |
| 08:54 | Types of variables |
| 09:02 | Convert a variable to a floating point number with “float()” |
| 10:07 | Transcendental math functions not a part of basic Python |
| 10:41 | Importing the “math” module |
| 11:06 | Using math functions |
| 11:32 | Math constants and the math constant e |
| 11:40 | Clear console window with cntr-L |
| 11:49 | The math constant pi |
| 11:58 | cosine and sine |
| 12:15 | Summary of the basic use of trascendental math functions in Python |
| 12:28 | “Directory” of the math object using the function “dir()” |
| 13:06 | “log()” is the natural logarithm; tesing the log() function to verify what it does. |
| 14:05 | Log to the base 10 with “log10()”; testing the log10() function to verify what it does. |
| 14:31 | Introduction to logicals |
| 14:40 | “True” |
| 14:55 | “False” |
| 15:04 | Opertations with logicals |
| 15:16 | “or” |
| 15:34 | “and” |
| 15:47 | grouping and “not” (the complement) |
| 16:24 | Comparisons: greater than (“>”) and less than (“<') |
| 16:40 | Equality (“”) |
| 17:23 | Greater than or equals (“>=”) and less than or equals (“<=') |
| 17:41 | Not equals (“!=”) |
| 18:00 | Summary of logicals |
| 18:52 | Getting information and documentation about Python |
| 19:01 | The best way to get information using a search engine such as Google |
| 19:16 | Finding Python tutorials |
| 19:24 | The python.org web site |
| 19:35 | The Python Tutorial at Python.org |
| 19:59 | Finding more specific Python information |
| 21:34 | The stackoverflow.com web site |
| 22:03 | Information about determining the type of an object at stackoverflow.com |
| 22:12 | Using “isinstance()” |
| 23:18 | Summary of getting information about Python |
| 23:50 | Video conclusion |