5.4. 모듈.matplotlib으로 하트 그리기

from pylab import *

x = linspace(-1.6, 1.6, 10000)
f = lambda x: (sqrt(cos(x)) * cos(200 * x) + sqrt(abs(x)) - 0.7) * \
    pow((4 - x * x), 0.01)
plot(x, list(map(f, x)))
show()

>>> import pylab
>>> pylab.linspace(5, 7, 20)
array([ 5.        ,  5.10526316,  5.21052632,  5.31578947,  5.42105263,
        5.52631579,  5.63157895,  5.73684211,  5.84210526,  5.94736842,
        6.05263158,  6.15789474,  6.26315789,  6.36842105,  6.47368421,
        6.57894737,  6.68421053,  6.78947368,  6.89473684,  7.        ])

>>> pow(2, 3)
8