python - how to turn an array into a callable function -

i have np.piecewise function turn callable.

for example, suppose have:

import numpy np x = np.linspace(0,10,1001) my_func = np.piecewise(x, [x<8, x>=8], [np.sin, np.cos]) 

i interested in making function my_callable_func has reasonable evaluation of my_func. reasonable, either default previous step in x, or use kind of linear approximation between successive x values.

for example, in case x = [0, 0.01, 0.02, ...], given my_new_func(0.015), i'd return np.sin(0.01) or that...

you wrap np.piecewise call inside function definition,

in [1]: def my_callable_func(x):    ...:     return np.piecewise(x, [x<8, x>=8], [np.sin, np.cos])    ...: my_callable_func(0.015)  out[1]: array(0.01499943750632809) 

the value of original x vector not matter. produces 0d numpy array, if necessary can cast float, return float(...).