1
vote
0answers
86 views

Defining an operator

Let s be a positive integer and let DifferenceDelta be this function with step = 1. Define ...
2
votes
2answers
132 views

HoldForm[Operator ##] on some list

Recently in response to this question Mr.Wizard suggested an unusual way to summing numbers. This doesn't seem to be documented. ...
16
votes
3answers
446 views

How is + as an infix operator associated with Plus?

How is + associated with Plus? Suppose I want to define a head FooBar and have it ...
6
votes
3answers
974 views

Using D to find a symbolic derivative

I need to do the following: Define a function Take the derivative of this function and have a look at the symoblic representation Substitute in some values With the bonus that I want to use the ...