diff options
Diffstat (limited to 'sem4/hpp/miniproject/optimised.py')
-rw-r--r-- | sem4/hpp/miniproject/optimised.py | 66 |
1 files changed, 35 insertions, 31 deletions
diff --git a/sem4/hpp/miniproject/optimised.py b/sem4/hpp/miniproject/optimised.py index 2d128c9..299d25e 100644 --- a/sem4/hpp/miniproject/optimised.py +++ b/sem4/hpp/miniproject/optimised.py @@ -1,5 +1,3 @@ -#!/usr/bin/env python3 - import numpy as np import matplotlib.pyplot as plt import time @@ -8,33 +6,23 @@ import time limitre = ( -2, 1 ) limitim = ( -1.5, 1.5 ) -def mangel(pre, pim, T, l): +def numpyiota(grid, T, l, savez): """ - Calculate the mangelbrot image - (pre, pim) discribes the image size. Use T and l to tune the mangelbrot - This function uses the global variables limitre and limitim to determine - the c-mesh range. - - :param pre: Number of real numbers used - :param pim: Number of imaginary numbers - :param T: Mangelbrot threshold - :param l: Iterations + Calculates the ι using numpy arrays. + This works with both numpy.arrays and numpy.ndarrays + Also devides by l + + :param grid: c-mesh. Shape will be used to make result + :param savez: Return z as the second element of returned tuple """ # Preallocate result array and z array - rs = np.zeros((pre, pim)) - z = np.zeros((pre, pim)) - - # Used to calculate c-mesh - re = np.linspace(limitre[0], limitre[1], pre) - im = np.linspace(limitim[0], limitim[1], pim) - - # Calculate c-mesh - grid = np.add.outer(re, 1j * im) + rs = np.zeros(grid.shape) + z = np.zeros(grid.shape) # Calculate ι for all complex numbers for i in range(l): # This will generate warnings for some of the values rising above T. - # Because these values are above T they are not used, thus the warnings + # Because these values become NAN they are not used, thus the warnings # can be ignored z = z*z + grid @@ -51,15 +39,31 @@ def mangel(pre, pim, T, l): rs += below rs /= l - - return rs -if __name__ == "__main__": - start = time.time() - arr = mangel(500, 500, 2, 100) - end = time.time() + if not savez: + z = None + return (rs, z) - plt.imshow(arr, cmap=plt.cm.hot, vmin=0, vmax=1) - plt.savefig("opt.png") +def mangel(pre, pim, T, l, savez): + """ + Calculate the mangelbrot image + (pre, pim) discribes the image size. Use T and l to tune the mangelbrot + This function uses the global variables limitre and limitim to determine + the c-mesh range. + + :param pre: Number of real numbers used + :param pim: Number of imaginary numbers + :param T: Mangelbrot threshold + :param l: Iterations + :param savez: Return z as the second element of returned tuple + """ + + # Used to calculate c-mesh + re = np.linspace(limitre[0], limitre[1], pre) + im = np.linspace(limitim[0], limitim[1], pim) + + # Calculate c-mesh + grid = np.add.outer(re, 1j * im) - print(f"Took {end - start} seconds") + # Calculate ι + return numpyiota(grid, T, l, savez) |