Instead of the mathfont'a italics I would like to try an upright typeface. See for example the P.p on the left of the sample, 1-p in the second \pmatrix and the toprow in the last one.
How can I do this globally, there by avoiding avoiding the need to sprinkle \mathrm's all around as in: \pmatrix{\mathrm p\cr\mathrm 1-p\cr}. A single \mathrm in front as not enough for the matrices.
kanaalmatrix.pdf
Description: Adobe PDF document
By the way, this comes from the lucida typescript. Hans van der Meer
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