4 ms·
Something like this? \underset{m,r}{U}\underset{r,r}{\Sigma} = \underset{m,n}{A}\underset{n,r}{V} I guess it's helpful when first introducing the variable
by syockit 3y ago
Something like this?
\underset{m,r}{U}\underset{r,r}{\Sigma} = \underset{m,n}{A}\underset{n,r}{V}
I guess it's helpful when first introducing the variables, but end up being visual clutter as you try to follow the equations later on.
- FabHK 3y agoYes, \underset. My old macro (see sister comment) ensures math mode, switches to a smaller font, uses a "x" (\times). You'd then write (with \cdots for better spacing) \ddim Umr \cdot \ddim {\Sigma}rr = \ddim Amn \cdot \ddim Vnr to get https://www.fabian-lischka.de/files/Various/ddim-ex3.png https://www.fabian-lischka.de/files/Various/ddim-ex3.png