# Import biblioteki numpy
import numpy


# Przeliczanie grady na radiany
def grads_to_radians(grads):
    if isinstance(grads, list):
        radians = []
        for grad in grads:
            radians.append((grad * numpy.pi) / 200)
        return radians
    else:
        return (grads * numpy.pi) / 200


# Przeliczanie radianów na grady
def radians_to_grads(radians):
    if isinstance(radians, list):
        grads = []
        for radian in radians:
            grads.append((radian * 200) / numpy.pi)
        return grads
    else:
        return (radians * 200) / numpy.pi


# Tablice z wartościami macierzy
# A = [1, 2, 5, 8]
#     [4, -5, 9, 7]
#     [1, 0, 0, 2]
#     [3, 6, 7, 2]
#
# B = [2, 4]
#     [2, 3]
#     [5, 6]
#     [1, 2]

A = numpy.array([[1, 2, 5, 8], [4, -5, 9, 7], [1, 0, 0, 2], [3, 6, 7, 2]])
B = numpy.array([[2, 4], [2, 3], [5, 6], [1, 2]])

# Zadanie 1
print("## Zadanie nr 1 ##")
print("Grady -> Radiany")
print(grads_to_radians(100))
print(grads_to_radians([100, 50, 20]))
print("#########################\n\n")

# Zadanie 2
print("## Zadanie nr 2 ##")
print("Grady -> Radiany")
print(radians_to_grads(100))
print(radians_to_grads([100, 50, 20]))
print("#########################\n\n")

# Zadanie 3
print("## Zadanie nr 3 ##")
print("Mnożenie macierzy:")
print(A.dot(B))
print("\n")
print("Macierz transponowana:")
print(A.T)
print("\n")
print("Macierz odwrotna:")
print(numpy.linalg.inv(A))
print("#########################")