python:dierbach:chapter_2_data_and_expressions
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| python:dierbach:chapter_2_data_and_expressions [2016/07/28 21:03] – mithat | python:dierbach:chapter_2_data_and_expressions [2016/07/29 00:12] – mithat | ||
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| ~~SLIDESHOW~~ | ~~SLIDESHOW~~ | ||
| ~~NOTOC~~ | ~~NOTOC~~ | ||
| + | |||
| + | |||
| + | ====== Data and Expressions ====== | ||
| + | Mithat Konar\\ | ||
| + | based on Dierbach' | ||
| ===== Contents ===== | ===== Contents ===== | ||
| Line 12: | Line 17: | ||
| ===== Literals ===== | ===== Literals ===== | ||
| - | < | + | {{http://mkonar.org/assets/img/cat-silhouette-01-trans-64px.png}} |
| - | <iframe width=" | + | |
| - | </iframe> | + | |
| - | </ | + | |
| ===== What is a literal? ===== | ===== What is a literal? ===== | ||
| * **literal**: | * **literal**: | ||
| - | * **numeric literal**: contains only the digits | + | * **numeric literal**: contains only the digits |
| * integer versus floating point value | * integer versus floating point value | ||
| * '' | * '' | ||
| Line 27: | Line 30: | ||
| * Floating point values have limited range and precision. | * Floating point values have limited range and precision. | ||
| - | * IEEE 754: ±10< | + | * IEEE 754: ±10< |
| - | * **arithmetic overflow**: results when operation causes number to be “too bigâ€. | + | * **arithmetic overflow**: results when operation causes number to be “too big”. |
| <code python> | <code python> | ||
| Line 34: | Line 37: | ||
| inf | inf | ||
| </ | </ | ||
| - | * **arithmetic underflow**: | + | * **arithmetic underflow**: |
| <code python> | <code python> | ||
| Line 133: | Line 136: | ||
| ' | ' | ||
| </ | </ | ||
| - | * Doesn’t work to break up a string. | + | * Doesn’t work to break up a string. |
| ===== Explicit Line Joining ===== | ===== Explicit Line Joining ===== | ||
| - | * **explicit joining** (backslash) can be used in some situations where implicit joining | + | * **explicit joining** (backslash) can be used in some situations where implicit joining |
| <code python> | <code python> | ||
| Line 143: | Line 146: | ||
| num_minutes * 60 | num_minutes * 60 | ||
| </ | </ | ||
| - | * Also doesn’t work to break up strings. | + | * Also doesn’t work to break up strings. |
| ===== Silly encoding example ===== | ===== Silly encoding example ===== | ||
| Line 159: | Line 162: | ||
| ===== Variables and Identifiers ===== | ===== Variables and Identifiers ===== | ||
| - | < | + | {{http://mkonar.org/assets/img/cat-silhouette-01-trans-64px.png}} |
| - | <iframe width=" | + | |
| - | </iframe> | + | |
| - | </ | + | |
| ===== What is a variable? ===== | ===== What is a variable? ===== | ||
python/dierbach/chapter_2_data_and_expressions.txt · Last modified: 2016/07/29 03:03 by mithat