[Python-Dev] Rounding float to int directly ... (original) (raw)

M.-A. Lemburg mal at egenix.com
Wed Aug 2 14:48:13 CEST 2006

Michael Chermside wrote:

Marc-Andre Lemburg writes:

You often have a need for controlled rounding when doing financial calculations or [other reason snipped] Hmm. Not in the banks I have worked at! We never use binary floating point for money. The decimal class is fairly useful in that regard.

For accounting, I agree - banks would rather not lose too many cents :-)

However, banks also tend to do more exotic things, esp. in investment banking, where prices are not determined by taking the sum of a list of values, but rather turn out to be the result of some calculus.

-- Marc-Andre Lemburg eGenix.com

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