Python 2.7.7 |Anaconda 2.0.1 (x86_64)| (default, Jun 2 2014, 12:48:16)

Type "copyright", "credits" or "license" for more information.

IPython 2.1.0 -- An enhanced Interactive Python.

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? -> Introduction and overview of IPython's features.

%quickref -> Quick reference.

help -> Python's own help system.

object? -> Details about 'object', use 'object??' for extra details.

%guiref -> A brief reference about the graphical user interface.

In [1]: 4.5 / 0

Traceback (most recent call last):

File "<ipython-input-1-1349566cb458>", line 1, in <module>

4.5 / 0

ZeroDivisionError: float division by zero

In [2]: 17 / 0

Traceback (most recent call last):

File "<ipython-input-2-3bf37c425175>", line 1, in <module>

17 / 0

ZeroDivisionError: integer division or modulo by zero

In [3]: x

Traceback (most recent call last):

File "<ipython-input-3-401b30e3b8b5>", line 1, in <module>

NameError: name 'x' is not defined

In [4]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [5]: read_my_file('this-file-does-not-exist.txt')

Traceback (most recent call last):

File "<ipython-input-5-16f105b97708>", line 1, in <module>

read_my_file('this-file-does-not-exist.txt')

File "/Users/progprim/Desktop/session5.py", line 16, in read_my_file

f = open(filename)

IOError: [Errno 2] No such file or directory: 'this-file-does-not-exist.txt'

In [6]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [7]: read_my_file('this-file-does-not-exist.txt')

Could not open file this-file-does-not-exist.txt

To exit: use 'exit', 'quit', or Ctrl-D.

An exception has occurred, use %tb to see the full traceback.

SystemExit: 1

In [8]: read_my_file('data.txt')

1 2 4 67 -34 340

0 45 3 2

In [9]: raise ValueError("Hello")

Traceback (most recent call last):

File "<ipython-input-9-c19336de144b>", line 1, in <module>

raise ValueError("Hello")

ValueError: Hello

In [10]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [11]: compute_sum_of_numbers_in_each_line_for_the_given_file('data.txt')

380

Traceback (most recent call last):

File "<ipython-input-11-7ce02b440646>", line 1, in <module>

compute_sum_of_numbers_in_each_line_for_the_given_file('data.txt')

File "/Users/progprim/Desktop/session5.py", line 12, in compute_sum_of_numbers_in_each_line_for_the_given_file

s = s + int(bit)

ValueError: invalid literal for int() with base 10: 'coffee'

In [12]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [13]: compute_sum_of_numbers_in_each_line_for_the_given_file('data.txt')

380

In [14]: x=42

In [15]: print("My number x is %d" % x)

My number x is 42

In [16]: print("My number x is %d." % x)

My number x is 42.

In [17]: "My number x is %d." % x

Out[17]: 'My number x is 42.'

In [18]: "My number x is %d, and x^2 is %d." % (x, x**2)

Out[18]: 'My number x is 42, and x^2 is 1764.'

In [19]: "My number x is %5d, and x^2 is %d." % (x, x**2)

Out[19]: 'My number x is 42, and x^2 is 1764.'

In [20]: y = 1.1234e10

In [21]: y

Out[21]: 11234000000.0

In [22]: "My number y is %f" % y

Out[22]: 'My number y is 11234000000.000000'

In [23]: "My number y is %e" % y

Out[23]: 'My number y is 1.123400e+10'

In [24]: "My number y is %g" % y

Out[24]: 'My number y is 1.1234e+10'

In [25]: import math

In [26]: p = math.pi

In [27]: "pi = %f" % pi

Traceback (most recent call last):

File "<ipython-input-27-41b1e3191e74>", line 1, in <module>

"pi = %f" % pi

NameError: name 'pi' is not defined

In [28]: "pi = %f" % p

Out[28]: 'pi = 3.141593'

In [29]: "pi = %10f" % p

Out[29]: 'pi = 3.141593'

In [30]: "pi = %10.2f" % p

Out[30]: 'pi = 3.14'

In [31]: "pi = %12f" % p

Out[31]: 'pi = 3.141593'

In [32]: "pi = %.12f" % p

Out[32]: 'pi = 3.141592653590'

In [33]: "pi = %.12f ." % p

Out[33]: 'pi = 3.141592653590 .'

In [34]: "pi = %-10f ." % p

Out[34]: 'pi = 3.141593 .'

In [35]: "pi = %-10f." % p

Out[35]: 'pi = 3.141593 .'

In [36]: print(4)

In [37]: a = 4

In [38]: dir(a)

Out[38]:

['__abs__',

'__add__',

'__and__',

'__class__',

'__cmp__',

'__coerce__',

'__delattr__',

'__div__',

'__divmod__',

'__doc__',

'__float__',

'__floordiv__',

'__format__',

'__getattribute__',

'__getnewargs__',

'__hash__',

'__hex__',

'__index__',

'__init__',

'__int__',

'__invert__',

'__long__',

'__lshift__',

'__mod__',

'__mul__',

'__neg__',

'__new__',

'__nonzero__',

'__oct__',

'__or__',

'__pos__',

'__pow__',

'__radd__',

'__rand__',

'__rdiv__',

'__rdivmod__',

'__reduce__',

'__reduce_ex__',

'__repr__',

'__rfloordiv__',

'__rlshift__',

'__rmod__',

'__rmul__',

'__ror__',

'__rpow__',

'__rrshift__',

'__rshift__',

'__rsub__',

'__rtruediv__',

'__rxor__',

'__setattr__',

'__sizeof__',

'__str__',

'__sub__',

'__subclasshook__',

'__truediv__',

'__trunc__',

'__xor__',

'bit_length',

'conjugate',

'denominator',

'imag',

'numerator',

'real']

In [39]: a.__str__()

Out[39]: '4'

In [40]: str(a)

Out[40]: '4'

In [41]: p

Out[41]: 3.141592653589793

In [42]: str(p)

Out[42]: '3.14159265359'

In [43]: p.__str__()

Out[43]: '3.14159265359'

In [44]: repr(p)

Out[44]: '3.141592653589793'

In [45]: p.__repr__()

Out[45]: '3.141592653589793'

In [46]: l = [1, 2, 'hello', p]

In [47]: print(l)

[1, 2, 'hello', 3.141592653589793]

In [48]: print(p)

3.14159265359

In [49]: eval("4")

Out[49]: 4

In [50]: type(eval("4"))

Out[50]: int

In [51]: eval("3.14")

Out[51]: 3.14

In [52]: type(eval("3.14"))

Out[52]: float

In [53]: pi

Traceback (most recent call last):

File "<ipython-input-53-68f7b1e53523>", line 1, in <module>

NameError: name 'pi' is not defined

In [54]: p

Out[54]: 3.141592653589793

In [55]: repr(p)

Out[55]: '3.141592653589793'

In [56]: eval(repr(p))

Out[56]: 3.141592653589793

In [57]: eval(repr(p)) - p

Out[57]: 0.0

In [58]: eval(str(p)) - p

Out[58]: 2.0694557179012918e-13

In [59]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [60]: print_x2_table()

0.0

0.5

1.0

1.5

2.0

2.5

In [61]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [62]: print_x2_table()

0.0 0.0

0.5 0.25

1.0 1.0

1.5 2.25

2.0 4.0

2.5 6.25

In [63]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [64]: print_x3_table()

0.0 0.0

0.5 0.125

1.0 1.0

1.5 3.375

2.0 8.0

2.5 15.625

In [65]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [66]: print_xn_table(2)

0.0 0.0

0.5 0.25

1.0 1.0

1.5 2.25

2.0 4.0

2.5 6.25

In [67]: print_xn_table(3)

0.0 0.0

0.5 0.125

1.0 1.0

1.5 3.375

2.0 8.0

2.5 15.625

In [68]: print_xn_table(100)

0.0 0.0

0.5 7.88860905221e-31

1.0 1.0

1.5 4.06561177535e+17

2.0 1.26765060023e+30

2.5 6.22301527786e+39

In [69]: import math

In [70]: math.sin(0)

Out[70]: 0.0

In [71]: math.sin(math.pi)

Out[71]: 1.2246467991473532e-16

In [72]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [73]: print_fx_table(math.sin)

0.0 0.0

0.5 0.479425538604

1.0 0.841470984808

1.5 0.997494986604

2.0 0.909297426826

2.5 0.598472144104

In [74]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [75]: print_fx_table(square)

0.0 0.0

0.5 0.25

1.0 1.0

1.5 2.25

2.0 4.0

2.5 6.25

In [76]: runfile('/Users/progprim/Desktop/session5.py', wdir='/Users/progprim/Desktop')

In [77]: print_fx_table(cubic)

0.0 0.0

0.5 0.125

1.0 1.0

1.5 3.375

2.0 8.0

2.5 15.625

In [78]: print_fx_table(lambda x: x**2)

0.0 0.0

0.5 0.25

1.0 1.0

1.5 2.25

2.0 4.0

2.5 6.25

In [79]: print_fx_table(lambda x: x**3)

0.0 0.0

0.5 0.125

1.0 1.0

1.5 3.375

2.0 8.0

2.5 15.625

In [80]: