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Re: [Alug] Perl variables and decimal please... Help
by xs＠kittenz.org 08 May '02

08 May '02

on Wed, May 08, 2002 at 01:18:52PM +0100, Richard Kettlewell wrote: > Why not: > > $a = int(100 * $a)/100.0; Because that truncates the number; it doesn't round. Plus seems to be slower than sprintf(), especially with a high enough number of decimal places required. Implementing it as a generic "reduce to n d.p." would probably require one exponent to an unknown, and not base 2, so probably not terribly easy for a compiler or interpreter to optimize. (afaik) > > Which will work, but personally I would try to avoid reducing the > > number of decimal places that are stored in the variable and instead > > do the reduction when the variable was printed, i.e. use sprintf and > > printf for printing the values. Sure, and printf is synonymous to print sprintf(). (It would seem fairly logical for printf to feed the value of sprintf() into print() and not interpret the values itself.)

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Re: [Alug] Perl variables and decimal please... Help-- Sorted, thanks
by Simon 08 May '02

08 May '02

On Wednesday 08 May 2002 5:18 pm, Richard Kettlewell wrote: > Steve Fosdick <fozzy(a)pelvoux.demon.co.uk> writes: > > On Tue, 07 May 2002 11:01:54 xs(a)kittenz.org wrote: > >> on Tue, May 07, 2002 at 10:30:22AM +0500, Simon wrote: > >>> It's gotta be easy, but I can't find it... How do I reduce > >>> the number of decimal places in a variable ??? <snip> > > $a = int(100 * $a)/100.0; > > > Which will work, but personally I would try to avoid reducing the > > number of decimal places that are stored in the variable and instead > > do the reduction when the variable was printed, i.e. use sprintf and > > printf for printing the values. > > Indeed. </snip> Perfect... thanks

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Javascript, perl script, anyscript help please....
by Simon 07 May '02

07 May '02

Hi Guys, I'm looking for a method of scrolling a HTML page up and down without user intervention... I know of the window.scroll method in Javascript, but I can only get it to scroll down... The purpose is so a page with monitoring data (MRTG graphs) can gently scroll up so all the graphs are displayed over a period of time... Any ideas ??? Simon

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Perl variables and decimal please... Help
by Simon 07 May '02

07 May '02

Hi Guys, It's gotta be easy, but I can't find it... How do I reduce the number of decimal places in a variable ??? Simon

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re javascript scrolling
by tom potts 07 May '02

07 May '02

window.scrollTo(x, y); with x and y set to 0 should take you back to the top. __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com

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Any "expect" gurus out there?
by Andrew Wallis 07 May '02

07 May '02

I have a shell script which runs an expect script which, in turn, connects to my router and reboots it. I've had something very like it for ages but I've had a problem ever since a recent upgrade to RH7.2. Basically, the script works fine in the foreground; it works fine under "at now +1 minute"; it works fine under "batch" BUT it always fails when run under cron. The relevant output from failed jobs looks like: ---------------------------------------------------------------------- spawn telnet my-router Trying 192.168.0.254... Connected to my-router. Escape character is '^]'. Password: Connection closed by foreign host. send: spawn id exp3 not open while executing "exp_send -s -- $arg" (procedure "send" line 3) invoked from within "send -- "X"" (file "/usr/local/sbin/reboot_router.exp" line 53) ---------------------------------------------------------------------- which seems to show that the telnet session is spawned OK and opens the connection (the "Password: " string comes from the router) but then as soon as expect tries to send the first character of the password, it finds that the telnet session has been closed! Any ideas, please? PS. Yes, I know all of the security risks in embedding passwords in scripts and in using telnet rather than ssh! Regards Andrew Wallis Fox Cottage Fox Hill St Cross South Elmham HARLESTON IP20 0NX UK tel: +44 (0)1986 782283 mobile: +44 (0)7860 217025 SMS via email: mailto: +447860217025(a)mmail.co.uk

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Allegro Install Howto
by Daniel Simpleman 06 May '02

06 May '02

I successfully installed Allegro in Windows and got it working just fine. The only problem is trying to install it for linux. Im getting problems when trying to compile the programs. Its like it cant find the libraries needed. A good tutorial might help me out... ...Daniel Simpleman __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com

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Weekly IRC reminder
by Neill Newman 06 May '02

06 May '02

This is the automated ALUG IRC meeting reminder sent to remind you that there is an IRC meeting tonight (Monday) at 8.00pm. The meeting takes place on the irc server irc.openprojects.net in the #alug channel, you can take a look at www.openprojects.net to get more info on the openprojects network. Most IRC clients should allow you to get there with the commands "/server uk.openprojects.net" or "/server eu.openprojects.net" and "/join #alug". Popular IRC clients include tkirc, bitchx, xchat and EPIC on Unix, and Mirc under windows. Here are some links to help you get started with irc. Unix http://www.xchat.org/ http://freshmeat.net/ http://www.epicsol.org/ Windows http://www.mirc.com (loads of help with irc for newbies!)

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Re: [Alug] Javascript, perl script, anyscript help please....
by MJ Ray 06 May '02

06 May '02

> Thanks Mark, > The links were fine, but there was no scrolling, well not the type I'm > looking for.... Pages like the news stories work by scrolling a frame, I think, but it seems to be broken in Mozilla (again). Not sure if they're using window.scroll, but hey ho, it was an idea. -- MJR

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UEA on the 9th June - Talk on Visual Effects
by Martyn Drake 05 May '02

05 May '02

Hi, I'm able to make it to the UEA on June 9th to do this talk on Linux in the post-production and visual effects industry if we've got a room booked for that date (I seem to remember a room in the ARTS building has been reserved). Is this okay with everybody? Regards, Martyn

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