analysis: analysis::hermite_numerov::hermite

def analysis.hermite_numerov.hermite_gauss	(	order,
		x,
		cache_key = `None`
	)

Definition at line 55 of file hermite_numerov.py.

00055                                           :
00056     "compute h[order](x)*exp(-x^2/2).  x may be an array, and cache_key should be a unique identifier for x if cacheing is desired."
00057     if type(x) is not type(1.0):
00058         xmax=max(abs(x))
00059     else:
00060         xmax=abs(x)
00061         
00062     if (not hermite_cache.has_key(order)) or hermite_cache[order][0] < xmax:
00063         q=generate_table(order, max(1.5*xmax, hermite_x_bound))
00064         hermite_cache[order]=q
00065     
00066     if cache_key and hermite_cache.has_key((order, cache_key)):
00067         hermite_cache[(order, cache_key)][0]=time.time() #update time stamp
00068         return hermite_cache[(order, cache_key)][1]
00069     else:
00070         xmax, xa, ya, y2a=hermite_cache[order]
00071         y= spline.splint(xa, ya, y2a, x)
00072         if cache_key:
00073             hermite_cache[(order,cache_key)]=[time.time(), y]
00074         return y
00075 
def purge_cache():