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Project Description
Thank you for installing simple_math.
You can contact me for problems, bugs, and suggetions of simple_math at
noahmouse2011@gmail.com



What's new in simple_math 1.1.0


almost ALL functions had a performance boost

removed useless changing whole number to int's in certain functions

exno has added optional argument "powers"
now works correctly with floating-point-numbers

mode only uses one argument

pvint and pvfloat have both been replaced by plval
old definitions are now wrappers but will be removed
in future update

factors now includes n for factors(n)

prifac can now compute for numbers with number
of prime factors > 1000

median works for unsorted lists

probably many more bug fixes that are unknown to
me at the time



Info about newest functions

exno(num:int, powers:bool = False) --> str
Return the Expanded Notation of "num" as a string

>>> simple_math.exno(325)
'( 3 * 100 ) + ( 2 * 10 ) + ( 5 * 1 )'
>>> simple_math.exno(30201)
'( 3 * 10000 ) + ( 2 * 100 ) + ( 1 * 1 )'
>>> simple_math.exno(30201.023)
'( 3 * 10000 ) + ( 2 * 100 ) + ( 1 * 1 ) + ( 2 * 0.01 ) + ( 3 * 0.001 )'
>>> simple_math.exno(30201.023,powers=True)
'( 3 * 10**4 ) + ( 2 * 10**2 ) + ( 1 * 10**0 ) + ( 2 * 10**-2 ) + ( 3 * 10**-3 )'
>>> simple_math.exno(1,powers=True)
'( 1 * 10**0 )'
>>>



factors(num:int) --> list
Return all factors of an int as a list
Raises ValueError for negitive or
floating point numbers

>>> simple_math.factors(10)
[1, 2, 5, 10]
>>> simple_math.factors(100)
[1, 2, 4, 5, 10, 20, 25, 50, 100]
>>> simple_math.factors(83) # prime number
[1, 83]
>>>



gcf(num1:int,num2:int) --> int
Return the Greatest Common Factor of two numbers
Already implemented in module "fractions" (and "math" in python 3.5)
may remove in future

>>> simple_math.gcf(4,6)
2
>>> simple_math.gcf(1,1000)
1
>>> simple_math.gcf(20,10)
10
>>>



gcfl(l:list) --> int
Return the Greatest Common Factor of a list of numbers

>>> simple_math.gcfl([4,6,8,10])
2
>>> simple_math.gcfl([15,12,9,6])
3
>>> simple_math.gcfl([number for number in range(100)]) #l=[0,1,2,3,4,5 ... 99]
1
>>>



lcd(num1:int,num2:int) --> int
Return the Least Common Denominator of two numbers

>>> simple_math.lcd(2,3)
6
>>> simple_math.lcd(14,7)
14
>>> simple_math.lcd(1000,1001)
1001000
>>>



lcdl(l:list) --> int
Return the Least Common Denominator of a list of numbers

>>> simple_math.lcdl([1,2,3])
6
>>> simple_math.lcdl([12,6,18])
36
>>> simple_math.lcdl([0,1,2,3,4,5])
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "simple_math.py", line 128, in lcdl
raise ValueError('invalid number "0"')
ValueError: invalid number "0"
>>>



mean(l:list) --> float
Return the Mean (Average) of a list of numbers

>>> simple_math.mean([1,2,3])
2.0
>>> simple_math.mean([3])
3.0
>>> simple_math.mean([9,4,10])
7.666666666666667
>>> simple_math.mean([1,2,3,4])
2.5
>>>



median(l:list) --> float
Return the Median of a list of numbers

>>> simple_math.median([1,2,3])
2.0
>>> simple_math.median([6,2,0,4,8])
4.0
>>> simple_math.median([6,2,0,4,8,5])
4.5
>>> simple_math.median([6,2,0,4,8,8])
5.0
>>>



mode(l:list) --> list
Return the Mode(s) in a list

>>> simple_math.mode([])
[]
>>> simple_math.mode([3])
[3]
>>> simple_math.mode([1,2,3,4,5,6])
[1, 2, 3, 4, 5, 6]
>>> simple_math.mode([1,2,3,4,5,6,6])
[6]
>>> simple_math.mode([1,2,3,4,5,6,6,1])
[1, 6]
>>>



pvint(num:int, place_value:int = 1) --> int
This is an old function and is replacable by plval
Will be removed in future versions



pvfloat(num:float, place_value:float = 1.0)
This is an old function and is replacable by plval
Will be removed in future versions



plval(num:float, place_value:int = 0)
Return the Place Value of a number
Place_value refers to n where the specified digit is in the 10^n slot
Raises ValueError if place value provided is invalid

>>> simple_math.plval(123)
3
>>> simple_math.plval(1024,3)
1
>>> simple_math.plval(1024.1024,-3)
2
>>>



prifac(num:int) --> list
Return the Prime Factorization of num in a list

>>> simple_math.prifac(8)
[2, 2, 2]
>>> simple_math.prifac(6)
[2, 3]
>>> simple_math.prifac(2*3*5*7)
[2, 3, 5, 7]
>>> simple_math.prifac(0) # 0 < 2
[]
>>>



prime(num:int) --> bool
Return True if num is a prime number and False if not

>>> simple_math.prime(3)
True
>>> simple_math.prime(4)
False
>>> simple_math.prime(13)
True
>>> simple_math.prime(1)
False
>>> simple_math.prime(-1)
False
>>>



primes_to(num:float) --> list
Return a list of all the primes up to a number

>>> simple_math.primes_to(10)
[2, 3, 5, 7]
>>> simple_math.primes_to(0)
[]
>>> simple_math.primes_to(17)
[2, 3, 5, 7, 11, 13, 17]
>>>



psr(num:int):
Return true if num has a Perfect Square Root and false otherwise

>>> simple_math.psr(4)
True
>>> simple_math.psr(5)
False
>>> simple_math.psr(0)
True
>>> simple_math.psr(123**2)
True
>>>



refine(string:str, variables:list = []) --> str
Return a parsed math term mostly readable by python
eg. .25 -> 0.25 , 2x(54/3) -> 2*x*(54/3) ,
| 1-x^3 \|/{10-4} -> (abs (1-x**3) )/(10-4) etc.
second parameter is a list of single character
reserved as unknown values
Not fully reliable
Will be changed in future versions

>>> simple_math.refine('.25')
'0.25'
>>> simple_math.refine('2x(54/3)',['x'])
'2*x*(54/3)'
>>> simple_math.refine('| 1-x^3 \| /{10-[4]}',['x'])
'(abs (1-x**3) )/(10-(4))'
>>> simple_math.refine('y=x^2',['x','y']) # bug!
'y*=*x**2'
>>>
Release History

Release History

1.1.0

This version

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1.0.0

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