def eval(self, x, y, z):
        """Evaluate the function in (x, y, z)."""
        xc, yc, zc = self.rc
        sx, sy, sz = self.s

        ## Method1: direct evaluation
        #return exp(-(((x-xc)**2)/(2*sx**2) + ((y-yc)**2)/(2*sy**2) +\
        #        ((z-zc)**2)/(2*sz**2)))

        ## Method2: evaluation using numexpr
        def arg(s):
            return "((%s-%sc)**2)/(2*s%s**2)" % (s, s, s)
        return NE.evaluate("exp(-(%s + %s + %s))" %
                           (arg("x"), arg("y"), arg("z")))
def eval(self, x, y, z):
        
        xc, yc, zc = self.rc
        sx, sy, sz = self.s

        
        
        

        
        def arg(s):
            return "((%s-%sc)**2)/(2*s%s**2)" % (s, s, s)
        return NE.evaluate("exp(-(%s + %s + %s))" %
                           (arg("x"), arg("y"), arg("z")))
def eval ( self , x , y , z ) : xc , yc , zc = self . rc sx , sy , sz = self . s ## Method1: direct evaluation #return exp(-(((x-xc)**2)/(2*sx**2) + ((y-yc)**2)/(2*sy**2) +\ #        ((z-zc)**2)/(2*sz**2))) ## Method2: evaluation using numexpr def arg ( s ) : return "((%s-%sc)**2)/(2*s%s**2)" % ( s , s , s ) return NE . evaluate ( "exp(-(%s + %s + %s))" % ( arg ( "x" ) , arg ( "y" ) , arg ( "z" ) ) )
Evaluate the function in (x, y, z).
Evaluate the function in ( x y z ) .