2
votes
1answer
136 views

How to get a calligraphic Pi in latex? [duplicate]

It would be easy to do calligraphic letters as: \mathcal{AABBCCQQZZ} As But How can I get a calligraphic \pi or \Pi, I mean capital version of Pi. I clearly remember that I saw calligraphic ...
5
votes
1answer
135 views

Which font style is this?

Does anyone know which font style the 'a' circled in yellow in the image below is (this is in math mode)? My guess is euscript with mathcal, but it seems that mathcal does not apply to lowercase ...
9
votes
2answers
884 views

LaTeX font for 'old-fashioned' script characters

Browsing through a copy of Counterexamples in Analysis (Gelbaum & Olmsted), I'm quite enjoying the typeface used for 'script' letters (see links to examples below); visually it's somewhere ...
2
votes
1answer
884 views

\cal messes up the math mode

How come when I use this code with beamer \begin{block}{Misadjustment} $$ \cal{M} = \frac{1-\lambda}{2}\sigma_v^2 M + \frac{1}{2(1-\lambda)}tr[\mathbf{RQ}] $$ \end{block} results in this: But ...
2
votes
2answers
2k views

How to use \mathcal with subscript? Undefined control sequence..

I am trying to have a cursively written l (L) with a subscript A. I tried this: If A has a straight line $\matchcal{l\subscript{A}}$ But I'm getting undefined control sequence. Why is this?