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	print(np.min(arr)) # Minimum		print(np.min(arr)) # Minimum
	</syntaxhighlight>		</syntaxhighlight>

	~~[[Category:KC IT]]~~
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Root: Created page with "= Basic python course = This tutorial provides a quick introduction to '''Python programming.''' It covers basic data types, control structures, and common programming concepts in Python. == Numbers and variables == '''Numbers''' represent integer or decimal values that can be used in mathematical operations. '''Variables''' are names that store values in memory. 3 + 5 # Addition 3 - 2 # Subtraction 3 * 4 # Multiplicati..."

2025-10-21T14:06:21Z

Created page with "= Basic python course = This tutorial provides a quick introduction to '''Python programming.''' It covers basic data types, control structures, and common programming concepts in Python. == Numbers and variables == '''Numbers''' represent integer or decimal values that can be used in mathematical operations. '''Variables''' are names that store values in memory. <syntaxhighlight lang="python"> 3 + 5 # Addition 3 - 2 # Subtraction 3 * 4 # Multiplicati..."

New page

= Basic python course =

This tutorial provides a quick introduction to '''Python programming.''' It covers basic data types, control structures, and common programming concepts in Python.

== Numbers and variables ==
'''Numbers''' represent integer or decimal values that can be used in mathematical operations.

'''Variables''' are names that store values in memory.

<syntaxhighlight lang="python">
3 + 5 # Addition
3 - 2 # Subtraction
3 * 4 # Multiplication
5 / 2 # Division (returns 2.5)
5 % 2 # Modulus (remainder)
</syntaxhighlight>

You can store and reuse values using variables:
<syntaxhighlight lang="python">
a = 5
b = 3
result = a + b
print(result) # 8
</syntaxhighlight>

== Strings ==
'''Strings''' are sequences of characters, such as text or symbols.

They can be enclosed in single (`'`) or double (`"`) quotes.

<syntaxhighlight lang="python">
greeting = "Hello"
name = 'Alice'
print(greeting, name)
</syntaxhighlight>

You can combine strings and variables using '''format()''':
<syntaxhighlight lang="python">
name = "Antonio"
age = 30
print("My name is {} and I am {} years old".format(name, age))
</syntaxhighlight>

Access characters using indices:
<syntaxhighlight lang="python">
word = "football"
print(word[0]) # 'f'
print(word[-1]) # 'l'
print(word[1:4]) # 'oot'
</syntaxhighlight>

== Lists ==
A '''list''' is an ordered collection of elements that can contain numbers, strings, or other objects.

Lists are '''mutable''', meaning you can add, change, or remove elements.

<syntaxhighlight lang="python">
letters = ['a', 'b', 'c']
letters.append('d')
print(letters) # ['a', 'b', 'c', 'd']
print(letters[0]) # 'a'
print(letters[-1]) # 'd'
</syntaxhighlight>

Lists can also contain other lists (nested lists):
<syntaxhighlight lang="python">
nested = [1, 2, 3, ['a', 'b', 'c']]
print(nested[3][0]) # 'a'
</syntaxhighlight>

== Dictionaries ==
A '''dictionary''' stores data as '''key-value pairs'''.

Each key must be unique, and it’s used to retrieve its corresponding value.

<syntaxhighlight lang="python">
person = {"name": "Antonio", "age": 30}
print(person["name"]) # Antonio
print(person["age"]) # 30
</syntaxhighlight>

== Booleans ==
'''Booleans''' represent logical values: either '''True''' or '''False'''.

They are commonly used in conditions and comparisons.

<syntaxhighlight lang="python">
a = 5
b = 6
print(a == b) # False
print(a < b) # True
</syntaxhighlight>

== Tuples ==
A '''tuple''' is a collection of elements similar to a list, but '''immutable''', meaning it cannot be changed after creation.

<syntaxhighlight lang="python">
t = (1, 2, 3)
print(t[0]) # 1
# t[0] = 5 → Error (cannot modify tuple)
</syntaxhighlight>

== Sets ==
A '''set''' is an '''unordered''' collection of '''unique''' elements.

It automatically removes duplicates and can be used for mathematical operations like unions or intersections.

<syntaxhighlight lang="python">
numbers = {1, 2, 2, 3}
print(numbers) # {1, 2, 3}
</syntaxhighlight>

Convert a list to a set to remove duplicates:
<syntaxhighlight lang="python">
nums = [1, 2, 2, 3, 3]
unique = set(nums)
print(unique)
</syntaxhighlight>

== Comparison operators ==
'''Comparison operators''' are used to compare two values and return a boolean result (True or False).

<syntaxhighlight lang="python">
a = 5
b = 4
print(a == b) # False
print(a != b) # True
print(a > b and b < 10) # True
print(a < b or b < 10) # True
</syntaxhighlight>

== Conditional statements ==
'''Conditional statements''' allow the program to make decisions based on certain conditions.

<syntaxhighlight lang="python">
text = "Hello, good morning, my name is Antonio"
print(text.upper()) # All uppercase
print(text.lower()) # All lowercase
print(text.split()) # Split by spaces
print(text.split(',')) # Split by comma
</syntaxhighlight>Use `if`, `elif`, and `else` to control the flow of the program.

<syntaxhighlight lang="python">
a = 5
b = 7

if a == b:
print("a equals b")
elif a > b:
print("a is greater than b")
else:
print("a is less than b")
</syntaxhighlight>

== For Loops ==
A '''for loop''' is used to iterate over a sequence such as a list, string, or range of numbers.

<syntaxhighlight lang="python">
numbers = [1, 2, 3, 4, 5]
for n in numbers:
print(n * 5)
</syntaxhighlight>

== While Loops ==
A '''while loop''' repeats a block of code as long as a specified condition is true.

<syntaxhighlight lang="python">
number = 1
while number < 5:
print(number)
number += 1
</syntaxhighlight>

== Range Function ==
The '''range()''' function generates a sequence of numbers.

It is commonly used in loops to define how many times to iterate.

<syntaxhighlight lang="python">
for x in range(2, 6):
print(x)
# Output: 2, 3, 4, 5
</syntaxhighlight>

== List Comprehensions ==
'''List comprehensions''' provide a concise way to create new lists from existing ones.

<syntaxhighlight lang="python">
numbers = [1, 2, 3, 4, 5]
doubles = [n * 2 for n in numbers]
print(doubles)
</syntaxhighlight>

== Functions ==
A '''function''' is a reusable block of code that performs a specific task.

Functions can receive parameters and return results.

<syntaxhighlight lang="python">
def greet(name):
"""Prints a personalized greeting."""
print("Hello, " + name)

greet("Antonio")

def add(a, b):
"""Returns the sum of two numbers."""
return a + b

print(add(2, 3))
</syntaxhighlight>

== Map Function ==
The '''map()''' function applies another function to each item in an iterable (e.g., list) and returns the results.

<syntaxhighlight lang="python">
def multiply(x):
return x * 2

numbers = [1, 2, 3]
doubled = list(map(multiply, numbers))
print(doubled)
</syntaxhighlight>

== Lambda Functions ==
A '''lambda function''' is an anonymous, one-line function often used for short operations.

<syntaxhighlight lang="python">
numbers = [1, 2, 3]
tripled = list(map(lambda x: x * 3, numbers))
print(tripled)
</syntaxhighlight>

== Filter Function ==
The '''filter()''' function selects elements from a sequence that meet a given condition.

<syntaxhighlight lang="python">
numbers = [1, 2, 3, 4, 5, 6]
evens = list(filter(lambda x: x % 2 == 0, numbers))
print(evens)
</syntaxhighlight>

== String Methods ==
'''String methods''' are built-in functions that allow you to manipulate and analyze text.

<syntaxhighlight lang="python">
text = "Hello, good morning, my name is Antonio"
print(text.upper()) # All uppercase
print(text.lower()) # All lowercase
print(text.split()) # Split by spaces
print(text.split(',')) # Split by comma
</syntaxhighlight>
[[Category:KC IT]]

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