example.py

import SparseMatrix as sm

# Create main function
def main():
	print("Hello World")

	# Define a sparse matrix
	m1 = sm.SparseMatrix(3, 3)
	m1[0, 0] = 1
	m1[0, 1] = 2
	m1[1, 1] = 3
	m1[2, 2] = 4
	print("M1 Sparse Matrix:")
	print(m1)

	# Define another sparse matrix
	m2 = sm.SparseMatrix(3, 3)
	m2[0, 1] = 5
	m2[1, 0] = 6
	m2[1, 2] = 7
	m2[2, 0] = 8
	print("M2 Sparse Matrix:")
	print(m2)

	# Add the two sparse matrices
	m3 = m1 + m2
	print("Addition of M1 and M2:")
	print(m3)

	# Multiply the two sparse matrices
	m4 = m1 * m2
	print("Multiplication of M1 and M2:")
	print(m4)

	# Check if a value is in the sparse matrix
	print("Is 5 in M1?")
	print(5 in m1, "\n")

	# Iterate over the sparse matrix
	print("Iterate over M1:")
	for value in m1:
		print(value)

	# Check if two sparse matrices are equal
	print("\nAre M1 and M2 equal?")
	print(m1 == m2, "\n")

	# Check if two sparse matrices are not equal
	print("Are M1 and M3 not equal?")
	print(m1 != m3, "\n")

	# Length of the sparse matrix
	print("Length of M1:")
	print(len(m1), "\n")

	# Convert the sparse matrix to hash
	print("Hash of M1:")
	print(hash(m1), "\n")

	# Cast to bool
	print("Bool of M1:")
	print(bool(m1), "\n")

	# Convert a sparse matrix to a normal matrix
	print("Convert M1 to a normal matrix:")
	print(m1.to_matrix(), "\n")

	# Delete an element from the sparse matrix
	print("Delete M1[0, 0]:")
	del m1[0, 0]
	del m1[0, 1]
	del m1[1, 1]
	print(m1)

	# Conovert a nXn matrix to a sparse matrix
	matrix = [
		[0, 0, 1, 3],
		[0, 0, 0, 0],
		[1, 0, 0, 1],
		[0, 4, 2, 0]
	]
	m5 = sm.SparseMatrix.from_matrix(matrix)
	print("Sparse Matrix from Matrix:")
	print(m5)

# This is the standard boilerplate that calls the main() function.
if __name__ == "__main__":
	# Call the main function
	main()