How can use the result of a function call in the same function again with a loop?-CodePudding

def next1(x,y):
    ymap = x y
    xmap = x-y
    return np.array([xmap,ymap])

A = next1(x,y)
B = next1(A[0],A[1])
C = next1(B[0],B[1])
D = next1(C[0],B[1])
E = next1(D[0],D[1])
F = next1(E[0],E[1])

I want to use the result obtained from the next1 function as an input argument further and so on for 100 times. I am not able to understand how to do it using loop.

CodePudding user response：

Since your function returns two values, you can "unpack" these to overwrite the original variables at every iteration:

x, y = 1, 1 #initial values
for i in range(100):
    x, y = next1(x, y)

CodePudding user response：

A variation you might find interesting:

xy = x,y
for i in range(100):
    xy = next1(*xy)