function in python_01 with R markdown

Functions in python

Example 1

def demo():
    print("Hello world!")

Example 2

def sum_cal(a,b): # sum of two components
    print(f"{a}+{b}= {a+b}") 

sum_cal(10,20)

## 10+20= 30

Example 3

def cal_fun(a,b,c): 
    d = b*b-4*a*c 
    return d 

delta = cal_fun(10,30,20)
print(f"delta = {delta}")

## delta = 100