Notation conventions
The following table provides a quick overview of conventions used in symbolic
operators in the lens library.
| Symbol | Concept | Denotes |
|---|---|---|
^ | getter | gets value from structure |
~ | setter | sets values in structure |
% | over | apply transformation over selected substructure |
= | state | threads state through |
<< | before change | returns value before specified change |
< | after change | returns value after specified change |
? | Maybe | optionality |
! | force | force value |
Susan Potter
Quant
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I spent the first half of my career building risk models and market data infrastructure at BNP Paribas, Bank of America, and Citadel, then fourteen years shipping production systems at scale. Now I bring both sides to quantitative trading. If you're a trading firm, family office, or fund looking to tighten the connection between your research ideas and your production trading systems, whether that's building validation pipelines, formalizing signal logic, or getting microstructure analytics into a deployable state, I'd like to hear what you're working on. Reach me at me@susanpotter.net.