Notes

Python 3.7.2 (tags/v3.7.2:9a3ffc0492, Dec 23 2018, 22:20:52) [MSC v.1916 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license()" for more information.
>>> vize=20
>>> vize
20
>>> del vize
>>> vize
Traceback (most recent call last):
File "<pyshell#3>", line 1, in <module>
vize
NameError: name 'vize' is not defined
>>> import math
>>> pi
Traceback (most recent call last):
File "<pyshell#5>", line 1, in <module>
pi
NameError: name 'pi' is not defined
>>> e
Traceback (most recent call last):
File "<pyshell#6>", line 1, in <module>
e
NameError: name 'e' is not defined
>>> math.pi
3.141592653589793
>>> math.e
2.718281828459045
>>> math.e**3
20.085536923187664
>>> math.exp(3)
20.085536923187668
>>> math.abs(-9)
Traceback (most recent call last):
File "<pyshell#11>", line 1, in <module>
math.abs(-9)
AttributeError: module 'math' has no attribute 'abs'
>>> abs(-9)
9
>>> math.ceil(9.3)
10
>>> math.floor(9.8)
9
>>> math.cmp(9.3)
Traceback (most recent call last):
File "<pyshell#15>", line 1, in <module>
math.cmp(9.3)
AttributeError: module 'math' has no attribute 'cmp'
>>> math.cmp(8,3)
Traceback (most recent call last):
File "<pyshell#16>", line 1, in <module>
math.cmp(8,3)
AttributeError: module 'math' has no attribute 'cmp'
>>> math.log(1000)
6.907755278982137
>>> math.log10(1000)
3.0
>>> math.log2(1000)
9.965784284662087
>>> x=[1,2,3,4,5,6]
>>> max(x)
6
>>> min(x)
1
>>> pow(2,3)
8
>>> 2**3
8
>>> round(7.5)
8
>>> round(7.2)
7
>>> math.sin(math.radians(30))
0.49999999999999994
>>> math.asin(0.5)
0.5235987755982989
>>> math.degrees(math.asin(0.5))
30.000000000000004
>>> math.sqrt(169)
13.0
>>> x=[16,81,64]
>>> y=map(math.sqrt,x)
>>> list(y)
[4.0, 9.0, 8.0]
>>> yazi='merhabalar'
>>> yazi
'merhabalar'
>>> yazi[0]
'm'
>>> yazi[2:]
'rhabalar'
>>> yazi.capitalize()
'Merhabalar'
>>> yazi.center(50,' ')
' merhabalar '
>>> yazi.count('m')
1
>>> yazi.count('a')
3
>>> yazi.endswith('lar')
True
>>> yazi.endswith('r')
True
>>> yazi.endswith('er')
False
>>> yazi.find('haba')
3
>>> yazi.index('haba')
3
>>> yazi.isalnum()
True
>>> yazi.isalpha()
True
>>> yazi.isdigit()
False
>>> yazi.islower()
True
>>> yazi.isupper()
False
>>> yazi.isspace()
False
>>> yazi='Merhaba Arkadaslar'
>>> yazi.istitle()
True
>>> ayrac='/'
>>> kelimeler=['python','matlab','c']
>>> ayrac.join(kelimeler)
'python/matlab/c'
>>> yazi
'Merhaba Arkadaslar'
>>> yazi.ljust(50,'-')
'Merhaba Arkadaslar--------------------------------'
>>> yazi.rjust(50,'-')
'--------------------------------Merhaba Arkadaslar'
>>> mesaj=' selamlar'
>>> mesaj.lstrip(' ')
'selamlar'
>>> yazi
'Merhaba Arkadaslar'
>>> yazi.lower()
'merhaba arkadaslar'
>>> yazi.upper()
'MERHABA ARKADASLAR'
>>> yazi.max()
Traceback (most recent call last):
File "<pyshell#66>", line 1, in <module>
yazi.max()
AttributeError: 'str' object has no attribute 'max'
>>> max(yazi)
's'
>>> #alfabede en sonra gelen harf ascii değeri en büyük yani
>>> min(yazi)
' '
>>> yazi.lower()
'merhaba arkadaslar'
>>> yazi.replace('ar','nar')
'Merhaba Arkadaslnar'
>>> yazi='merhaba arkadaslar'
>>> yazi.replace('ar','nar')
'merhaba narkadaslnar'
>>> print('adim %s yasim %d' % ('murat',21))