Utah2016 "5 things I wish I knew"

#####Adam Boocher

One can define a ring without "ideal" e.g.
```
     S = QQ[x,y]/(x^2,x*y)
```
Typing ?matrix returns some help files
With for loops, you don't need to specify the lower bound, if it is zero. e.g.
```
     for i to 5 do print i;
```
There is clever power series code in hilbertSeries
You don't need parentheses if you use spaces judiciously. For example, the following two are the same:
```
    first {{1,2,5},QQ[x,y]} /(i->i^2)  == (first {{1,2,5},QQ[x,y]})/(i->i^2)
```
If you want to load something everytime that M2 loads, you should add a line to the init.m2 file. I had trouble locating this file, but ultimately found it in Application\ Support /Macaulay2/ (On other machines it might be in Applications/Macaulay2/
If you want git to use emacs instead of vi then just use git
```
    config --global core.editor emacs
```

flatten entries (Matrix): Turns Matrix into a list whereas the command "toList" is not working for Matrices.
(vars ambient ring J)_{0..(r-1)}: Returns the first r variables of the ring in which the ideal J is living inside.
max(apply(L,zz->degree zz): Returns the maximum degree among elements of a list L of polynomials :
toList(apply(0..r-1,z->0):
A list with r zeros:

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