sympy/sympy — pull request #2060 by asmeurer (2013-05-01 05:22:54+00:00)
Title: Use / or \ in textplot if the function is increasing or decreasing

Before:

```
0.99845 | ... ....
| .. ..
| . .
| . .
| . .
| . .
| . .
| . . . 5.55112 |
-.--------------------------.------------------------.-
| . . .
| . .
| . .
| . .
| . .
| . .
| . .
| .. ..
-0.9984 | ........
-10 0 10
```

After:

```
0.99845 | ... ....
| .. ..
| / \
| / \
| / \
| / \
| / \
| \ / \ 5.55112 |
-\--------------------------/------------------------\-
| \ / \
| \ /
| \ /
| \ /
| \ /
| \ /
| \ /
| .. ..
-0.9984 | ........
-10 0 10

```
I'm actually undecided as to whether this is actually a good idea or not, so
comments are welcome.