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| Beide Seiten, vorherige Überarbeitung Vorherige Überarbeitung Nächste Überarbeitung | Vorherige Überarbeitung | ||
| talit:python_basics [2020-02-09 21:39] – sca | talit:python_basics [2020-02-09 21:42] (aktuell) – sca | ||
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| 1. Can you use numbers or special characters like `?, | 1. Can you use numbers or special characters like `?, | ||
| - | <!-- You can even use numbers in variable names, as long as they are not in the beginning, e.g., `mystring13 = "Hello World" | ||
| - | But you can NOT use special characters in variable names | ||
| - | --> | ||
| 2. How can you add a line break to a string? | 2. How can you add a line break to a string? | ||
| - | <!-- % mystring = " | ||
| 3. Is Python case-sensitive? | 3. Is Python case-sensitive? | ||
| 4. Given a (long enough) string `s`, what do the commands | 4. Given a (long enough) string `s`, what do the commands | ||
| Zeile 106: | Zeile 102: | ||
| ## Integers & floats | ## Integers & floats | ||
| - | \label{sec integers and floats} | ||
| Next, let's have a look at numbers, in particular integers and floats. | Next, let's have a look at numbers, in particular integers and floats. | ||
| Zeile 295: | Zeile 290: | ||
| - | # Conditions | + | # Conditions & Booleans |
| We can check if one or multiple conditions are satisfied. | We can check if one or multiple conditions are satisfied. | ||
| Zeile 414: | Zeile 409: | ||
| Second, we discuss the **while-loop**. It repeats a piece of code as long as a condition is satisfied. | Second, we discuss the **while-loop**. It repeats a piece of code as long as a condition is satisfied. | ||
| - | Careful: If you have a bug in your code and the condition is always true, you have an `infinite loop': the code will never stop running and you will have to kill the process manually. | + | Careful: If you have a bug in your code and the condition is always true, you have an **infinite loop**: the code will never stop running and you will have to kill the process manually. |
| A simple example of a while-loop is: | A simple example of a while-loop is: | ||
| Zeile 463: | Zeile 458: | ||
| # Elapsed time | # Elapsed time | ||
| - | \label{sec elapsed time} | ||
| If you want to test the efficiency of your code, it is useful to measure the time needed for the calculation: | If you want to test the efficiency of your code, it is useful to measure the time needed for the calculation: | ||
sca