Re: Floating point size
"charles" <instrulab@xxxxxxxxxxxxx> wrote in message
news:rX98f.6905$dO2.2066@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> How many digits does Delphi 5 use in the floating point routines
Which ones? Read the source.
> and in the doubles and in the reals?
Type "Double", press F1, read help.
I could tell you that the FPU uses 80-bit reals internally throughout,
and that Single is a 32-bit, Double a 64-bit, and Extended an 80-bit
real, and that Real can be aliased onto either Double or Real48, but
that would not help you in the face of an obscure function in the
library that uses Single temporary variables. So read the source, and
read the help.
Groetjes,
Maarten Wiltink
.
Relevant Pages
- Re: Floating point size
... > How many digits does Delphi 5 use in the floating point routines and in ... > doubles and in the reals? ...
(alt.comp.lang.borland-delphi) - Re: Floating point size
... > How many digits does Delphi 5 use in the floating point routines and in ... Doubles and Reals are both floating point types. ...
(alt.comp.lang.borland-delphi) - Re: Floating point size
... >How many digits does Delphi 5 use in the floating point routines and in the ... >doubles and in the reals? ... Further to Bruce's good advice, I suggest that you look carefully at ...
(alt.comp.lang.borland-delphi) - Re: Find out if I/10^i = J/2^j (decadic - dyadic pairing)
... 0s with different valency towards infinity; ... but instead some sort of floating point number. ... The reals are sometimes ... algorithms that /do/ halt with the output of a symbol (marks on tape, ...
(sci.math) - Re: Float comparison
... If you exclude NaNs and infinities it is a member of a finite subset of the rationals, which in turn is a subset of the reals. ... Now quote the section of the C standard that states that floating point numbers are reals. ... can tell the exact value stored in that object. ... The intervening calculations were approximations which gave a known acceptable limit on the error of the settings given to the hardware when compared to the theoretical mathematical values the algorithm I had to implement an approximation of. ...
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