Hi. I have an expression like
f:=ax
or`
f[x_]:=ax
and next i have to put
f[x_,a_]:=f
or
but it doesn't work.
Thank you for your reply. I explained better the problem i would to solve in the post called "Can I treat indexed objects as variables?". I'll be glad if you can help me
Does this help?
In[1]:= f[] = 3; In[2]:= f[a_] := a^7 In[3]:= f[] Out[3]= 3 In[4]:= f@5 Out[4]= 78125
Another take:
In[1]:= f[] := a x In[2]:= f[x_, a_] := f[] In[3]:= f[p, q] Out[3]= a x
