Arithmetic Operation in Python
kinds of Arithmetic Operation in Python
| Symbol | explaination | return |
| + | Addition | depend on input type |
| - | Subtraction | depend on input type |
| * | Multiplication | depend on input type |
| / | Division | real number |
| // | Division | Integer |
| % | Remaineder | real number |
| ** | power of | depend on input type |
| and | and logic gare | T or F |
| or | or logic gate | T or F |
| < | less than | T or F |
| > | greater than | T or F |
| <= | less than or equal | T or F |
| >= | greater than or equal | T or F |
| == | equal | T or F |
Result
+, -, , /, //, %, *, <, >, <=, >= table
| A | B | result |
| int | int | int A+B result |
| int | float | float A+B result |
| int | bool-T | int A+1 result |
| int | bool-F | int A+0 result |
| int | none | TypeError |
| int | String | TypeError |
| float | bool-T | float A+1 result |
| float | bool-F | float A+0 result |
| float | none | TypeError |
| float | String | TypeError |
| bool | none | TypeError |
| bool | String | TypeError |
| none | String | TypeError |
When computer created and programming language started, 1 was true and 0 was false.
== table
| A | B | result |
| int | int | bool result |
| int | float | bool result |
| int | bool | bool result |
| int | none | bool result |
| int | String | bool result |
| float | bool | bool result |
| float | none | bool result |
| float | String | bool result |
| bool | none | bool result |
| bool | String | bool result |
| none | String | bool result |
unlike Java, this is not comparing class.
It compare values because all of them are object.
and, or truth table
| A | B | and | or |
| F | F | F | F |
| F | T | F | T |
| T | F | F | T |
| T | T | T | T |
As above table, the "and" "or" are for true and false.
If you put other type, or gate return B value
If you put other type, and gate return A value
