I was reading Bayes' essay "An Essay towards Solving a Problem in the Doctrine of Chances" and noticed the following bit of notation
The meaning of the n+1 term is clear from the rest of the essay (in modern terms it would be surrounded by parentheses rather than have the bar), but the ×d part confused me. Initially I thought it meant "multiply d times", but there is no numeric variable d elsewhere, leading me to think that ×d is meant to be an abbreviation for "multiplied".
Has ×d been used in other works to mean multiplied? Here, it seems to mean that in context (it fits the sentence, at least), but other historical examples would increase my confidence.
A copy of the paper is here. The image is from the bottom of page 29 of the PDF.
There is a transcription of the paper originally from UCLA but now on the WayBackMachine It uses two different "x". The UCLA copy still uses the archaic bar in place of parenthesis.
In modern notation I copy it as:
Where the lower case x is multiplication, the upper case X is a variable and ^d is exponentiation.
Upper case X is a variable used many times in that area of the paper.
I think the real answer to this question is "Go and find a different (newer) transcription of the paper and draw your own conclusions."