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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsDate: Thu, 29 Aug 2024 22:39:20 +1000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Display Engineering Notation with SI Prefix Newsgroups: comp.lang.forth References: <66cf431d$1@news.ausics.net> <66d04731$1@news.ausics.net> Content-Language: en-GB From: dxf In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit NNTP-Posting-Host: news.ausics.net Message-ID: <66d06bf8@news.ausics.net> Organization: Ausics - https://newsgroups.ausics.net Lines: 69 X-Complaints: abuse@ausics.net Path: ...!weretis.net!feeder9.news.weretis.net!news.bbs.nz!news.ausics.net!not-for-mail Bytes: 2670 On 29/08/2024 8:39 pm, mhx wrote: > On Thu, 29 Aug 2024 10:02:26 +0000, dxf wrote: > >> On 29/08/2024 1:32 am, dxf wrote: > [..] >> The real (FE.) has no such issues and works as expected ... >> >> VFX Forth 64 for Windows x64 >>   © MicroProcessor Engineering Ltd, 1998-2023 >> >>  Version: 5.43 [build 4241] >>  Build date: 22 December 2023 >> >> 2 set-precision  ok >> 1.234e 1e2 f* -1 (fe.) type 120.E0 ok > > Using the non-standard set-precision of iForth: > > FORTH> 2 set-precision 1.234e f. 1.23  ok > FORTH> 1 set-precision 1.234e f. 1.2  ok > FORTH> 3 set-precision 1.234e f. 1.234  ok > FORTH> 3 set-precision 1234e  f. 1234.000  ok > FORTH> 0 set-precision 1234e  f. 1234  ok So iForth PRECISION equates to 'decimal places'. In VFX 'decimal places' is achieved thus: 1.234e 2 0 f.r 1.23 ok 1.234e 1 0 f.r 1.2 ok 1.234e 3 0 f.r 1.234 ok 1234e 3 0 f.r 1234.000 ok 1234e 0 0 f.r 1234. ok PRECISION only comes into effect in 'significant digits' mode: 3 set-precision 1.234e -1 0 f.r 1.23 ok 12.34e -1 0 f.r 12.3 ok 123.4e -1 0 f.r 123. ok 1234.e -1 0 f.r 1230. ok or simply: 1.234e f. 1.23 ok 12.34e f. 12.3 ok 123.4e f. 123. ok 1234.e f. 1230. ok > Didn't F83 have DIGITS ? Neither Laxen/Perry F83 nor Forth-83 had floating point. You may be thinking of PLACES from 'The Forth Vendors Group Standard Floating Point Extension' (?) That was initially considered by the ANS-TC and documented in BASIS17: 12.1.2032 PLACES ( u -- ) Set the number of decimal places (digits to the right of the radix point) displayed by E. and F. PLACES would be synonymous with your PRECISION . Has any language other that Forth opted for 'significant digits' over (or in addition to) 'decimal places'? The former seems particularly suited to engineering.