[pmart123]

Floating-point precision can work depending on the financial application. If you are back-testing on exchange data, your simulation code only buys or sells at the bid or ask prices, so even if the signal has floating point imprecision, it doesn't really affect the result. On valuation work, getting the inputs into a DCF/reverse DCF right is much more important than exact precision. I realize this is vastly different than writing an accounting application, but for most hedge funds, it probably won't make a difference to use floats vs. decimals.