レシピ5.4のためにCythonをinstall
ver 0.23.4が入った
%load_ext cythonmagic
OKであるが
%%cython -a
import numpy as np
def mandelbrot_cython(m, size, iterations):
for i in range(size):
for j in range(size):
c = -2 + 3./size*j + 1j*(1.5-3./size*i)
z = 0
for n in range(iterations):
if np.abs(z) <= 10:
z = z*z + c
m[i, j] = n
else:
break
で次のようなエラーがでてとまる？
RROR: Cell magic `%%cython` not found.
