Fixed – Fixed-place decimal math library for Go
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Re: Fixed – Fixed-place decimal math library for Go
#2I'm not an expert but a finance library without a choice of rounding modes and using floating point for division and multiplication is a bit strange? Why those decisions?
Re: Fixed – Fixed-place decimal math library for Go
#3I'm not an expert but a finance library without a choice of rounding modes and using floating point for division and multiplication is a bit strange? Why those decisions?
It appears to be using this: https://engineering.shopspring.com/decimal-an-arbitrary-prec...
Re: Fixed – Fixed-place decimal math library for Go
#4I'm not an expert but a finance library without a choice of rounding modes and using floating point for division and multiplication is a bit strange? Why those decisions?
Despite what everyone says, I've spoken to several different people at several different highly-regarded banks who say that they do, in fact, use floating point for money amounts in some of their systems.
What experience do people who work in banks have?
Re: Fixed – Fixed-place decimal math library for Go
#5I'm a bit surprised to see floating point being used for multiplication, division etc. I would have expected to see this implemented with integers as well (with each operation changing the position of the point).
Re: Fixed – Fixed-place decimal math library for Go
#6No sqrt, sin, cos functions?
Re: Fixed – Fixed-place decimal math library for Go
#7I'm not an expert but a finance library without a choice of rounding modes and using floating point for division and multiplication is a bit strange? Why those decisions?
Despite what everyone says, I've spoken to several different people at several different highly-regarded banks who say that they do, in fact, use floating point for money amounts in some of their systems. What experience do people who work in banks have?
I worked in the credit union software space for a while, and using floating points for this does lead to trouble. There were several bugs in my time that were caused by using floats and were fixed by using integer math.
Re: Fixed – Fixed-place decimal math library for Go
#8I'm not an expert but a finance library without a choice of rounding modes and using floating point for division and multiplication is a bit strange? Why those decisions?
Despite what everyone says, I've spoken to several different people at several different highly-regarded banks who say that they do, in fact, use floating point for money amounts in some of their systems. What experience do people who work in banks have?
I work in Finance, I don't use float, and I suggest you never do either.
Re: Fixed – Fixed-place decimal math library for Go
#9No sqrt, sin, cos functions?
Probably not high priority in financial computing.
Re: Fixed – Fixed-place decimal math library for Go
#10Dear moderators it is called Go, from the github description, "fixed decimal place math library for Go".