3.7.3 Can you answer these questions?

3.7.3.1 Looking for a package for finite mappings

http://mathematica.stackexchange.com/questions/121776/looking-for-a-package-for-finite-mappings

 
I am looking for a package for dealing with "mappings" $f\colon A\to B$ where $A$ and $B$ are finite subsets of the set of all possible (inert) expressions. 
 
I need operations like: 
 
 
Computing $f(a)$  ...
 

- asked by masterxilo 3votes

3.7.3.2 Using Palettes in Mathematica Online

http://mathematica.stackexchange.com/questions/121935/using-palettes-in-mathematica-online

 
my student is using the online version of Mathematica for my class; it appears to not have a palette feature for typing formatted input?  This was kind of shocking to me; why wouldn't there be a  ...
 

- asked by Jake Mirra 1vote

3.7.3.3 Derivation of an interpolation function with multiple arguments

http://mathematica.stackexchange.com/questions/121599/derivation-of-an-interpolation-function-with-multiple-arguments

 
I have the following interpolation function: 
 
f[x_,a_,b_]:=70 s[a,b][[1,1,2]][x] 
 
 
where s[a,b] is the solution of a differential equation. 
 
s[a_, b_] := NDSolve[{ 
H2[x] == Rx[x]^2 + G[x, a, b], 
...
 

- asked by Maria 2votes

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