V6 evaluation inside Table and plot

*To*: mathgroup at smc.vnet.net*Subject*: [mg76577] V6 evaluation inside Table and plot*From*: Gerry Flanagan <flanagan at materials-sciences.com>*Date*: Thu, 24 May 2007 06:04:47 -0400 (EDT)

Define a simple function In[7]:= f = Function[{x}, x^3] Out[7]= Function[{x}, x^3] Taking two derivatives works as it should In[2]:= f''[x] I was converting some packages to work with V6, and immediately ran into some evaluation issues I don't understand. It looks like forms like f''[x] (derivative) are evaluated differently inside of Table and Plot than outside. Out[2]= 6 x But this does not? In[20]:= Table[f''[x], {x, 0, 1, .2}] Out[20]= {0, 0, 0, 0, 0, 0} Strangely, this works In[4]:= Table[f'[x], {x, 0, 1, .2}] Out[4]= {0., 0.12, 0.48, 1.08, 1.92, 3.} Determining the derivative outside the Table makes it work again. In[12]:= g = f''; In[21]:= tmp = Table[g[x], {x, 0, 1, .2}] Out[21]= {0., 1.2, 2.4, 3.6, 4.8, 6.} Gerry Flanagan

**Follow-Ups**:**Re: V6 evaluation inside Table and plot***From:*"Lev Bishop" <lev.bishop@gmail.com>