以下代码展示了用python如何模拟星形数学模型：

# Function to demonstrate printing pattern triangle

def triangle(n):

# number of spaces

k = 2*n - 2

# outer loop to handle number of rows

for i in range(0, n):

# inner loop to handle number spaces

# values changing acc. to requirement

for j in range(0, k):

print(end=" ")

# decrementing k after each loop

k = k - 1

# inner loop to handle number of columns

# values changing acc. to outer loop

for j in range(0, i+1):

# printing stars

print("* ", end="")

# ending line after each row

print("\r")

# Driver Code

n = 5

triangle(n)