This commit is contained in:
David Beazley
2020-05-24 19:24:06 -05:00
parent fb834fbaa5
commit 6e07d1c5f5
3 changed files with 52 additions and 54 deletions

View File

@@ -45,22 +45,22 @@ e = 0b10001111 # Binary
Common operations:
| | |
| ---- | ---- |
| + | Add |
| - | Subtract |
| * | Multiply |
| / | Divide |
| // | Floor divide |
| % | Modulo |
| ** | Power |
| << | Bit shift left |
| >> | Bit shift right |
| & | Big-wise AND |
| &#124; | Bit-wise OR |
| ^ | Bit-wise XOR |
| ~ | Bit-wise NOT |
| abs(x) | Absolute value |
```
x + y Add
x - y Subtract
x * y Multiply
x / y Divide
x // y Floor Divide
x % y Modulo
x ** y Power
x << n Bit shift left
x >> n Bit shift right
x & y Bit-wise AND
x | y Bit-wise OR
x ^ y Bit-wise XOR
~x Bit-wise NOT
abs(x) Absolute value
```
### Comparisons
@@ -114,16 +114,16 @@ This is **not a Python issue**, but the underlying floating point hardware on th
Common Operations:
| | |
| ---- | ---- |
| + | Add |
| - | Subtract |
| * | Multiply |
| / | Divide |
| // | Floor divide |
| % | Modulo (remainder) |
| ** | Power |
| abs(x) | Absolute value |
```
x + y Add
x - y Subtract
x * y Multiply
x / y Divide
x // y Floor Divide
x % y Modulo
x ** y Power
abs(x) Absolute Value
```
Theses are the same operators as Integers, except for the bit-wise operators.

View File

@@ -26,15 +26,14 @@ Triple quotes capture all text enclosed in multiple lines.
### String escape codes
| | |
| ---- | ---- |
| `'\n'` | Line feed |
| `'\r'` | Carriage return |
| `'\t'` | Tab |
| `'\''` | Literal single quote |
| `'\"'` | Literal double quote |
| `'\\'` | Backslash |
```
'\n' Line feed
'\r' Carriage return
'\t' Tab
'\'' Literal single quote
'\"' Literal double quote
'\\'` Literal backslash
```
These codes are inspired by C.
### String Representation
@@ -118,24 +117,23 @@ t = s.replace('Hello' , 'Hallo')
**More string methods:**
| | |
| ---- | ---- |
| s.endswith(suffix) | # Check if string ends with suffix |
| s.find(t) | # First occurrence of t in s |
| s.index(t) | # First occurrence of t in s |
| s.isalpha() | # Check if characters are alphabetic |
| s.isdigit() | # Check if characters are numeric |
| s.islower() | # Check if characters are lower-case |
| s.isupper() | # Check if characters are upper-case |
| s.join(slist) | # Joins lists using s as delimiter |
| s.lower() | # Convert to lower case |
| s.replace(old,new) | # Replace text |
| s.rfind(t) | # Search for t from end of string |
| s.rindex(t) | # Search for t from end of string |
| s.split([delim]) | # Split string into list of substrings |
| s.startswith(prefix) | # Check if string starts with prefix |
| s.strip() | # Strip leading/trailing space |
| s.upper() | # Convert to upper case |
```python
s.endswith(suffix) # Check if string ends with suffix
s.find(t) # First occurrence of t in s
s.index(t) # First occurrence of t in s
s.isalpha() # Check if characters are alphabetic
s.isdigit() # Check if characters are numeric
s.islower() # Check if characters are lower-case
s.isupper() # Check if characters are upper-case
s.join(slist) # Joins lists using s as delimiter
s.lower() # Convert to lower case
s.replace(old,new) # Replace text
s.rfind(t) # Search for t from end of string
s.rindex(t) # Search for t from end of string
s.split([delim]) # Split string into list of substrings
s.startswith(prefix) # Check if string starts with prefix
s.strip() # Strip leading/trailing space
s.upper() # Convert to upper case
### String Mutability