Simon Pfahler

Fix `ad` to perform necessary traces of `tensor` [SMALL]

1

Fixes #152

``` grid = g.grid([2,2,2,2], g.double) ms = g.ad.reverse.node(g.tensor(g.object_type.ot_matrix_spin(4))) vsc = g.vspincolor(grid) g.norm2(ms*vsc)() ``` The gradient backpropagation does not work because the color trace is not done before adding the gradients,...

Limits of symbolic sums/products in display-style math

1

When a limit of a `\sum` or a `\product` is changed in display-style math, latexdiff shows the limits as if they were set in an inline-math environment. Example: `old.tex` ```...