viernes, 26 de febrero de 2021

Mathematical operations and objects in Python



MATHEMATICAL OPERATIONS AND OBJECTS WITH PYTHON


Data types: String, integer, float, complex, set,  list, 

Objects: tuple,  sets, range,  boolean


-->>  mathematical Operations


5 + 5 


2 + 2/4


(2 +2 ) /4


12*5


12.*3


12//5   ###  12 /5  = 2 + res (2)


5**3


5^3


x = 2 + 4j   <--- how to define a complex




x = min(5, 10, 25)


y = max(5, 10, 25)


pow(5,3)  # as before


print(x)


print(y)


print("My values is:", x+y)


import math as mh


mh.


mh.sqrt(3)


x = mh.pi


mh.log(3)  ## natural logarithm


mh.log10(3)


mh.ceil(1.4)


a= mh.exp(-5)  ### e^-5


a


a = 2+ 4j


a = mh.factorial(3)   ### mh.  spyder automatically will display options


3*2*1 = 6


##########  What is the data type??


type(a)


type(x)


### Setting (construct) specific data type


str(3)  # What is the output? integer?

type( str(3) )


int(20.5)


int('3')    ## ch  --> int


float(20)



complex(1,1)  



bool(0)



bool(2)


### structure u objetos


 x= tuple( ("my","tuple") )



set(("apple", "banana", "cherry"))


{"Hola","You"}


--> dictionaries, list, bytes, ...


### Tuples


--> A tuple is a collection which is ordered and unchangeable.



tuple1 = ("abc", 34, True, 40, "male")



print(tuple1)


tuple1[0] ### python inicia en 0,   python index starts at 0


tuple1[1] = 35  #####♥ ERROOORRRRRRR


c= (2,2,3,5, 8)



c[0]



c[4] = -5    ### what is the response?



### SET


-->>  Set is a collection which is unordered and unindexed. No duplicate members.



thisset = {"apple", "banana", "cherry","lemon", 5}



print(len(thisset))


### ASSIGN VARIABLES


x = 5



x = y = z = "Hello"

 


 x,y,z = "Hello", "You","!"



print(x)

print(y)

print(z)

martes, 2 de julio de 2019

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