add

I am confused about the difference between add and addu. The MIPS instruction reference says: add (with overflow) add unsigned (no overflow) My understanding is to use add with signed operands and addu with unsigned operands. But let's consider this example (with only 6bit): overflow | V 1 | 1 1 1 <- carry | 1 1 1 1 0 1 + | 1 1 1 1 1 0 = ----------------- | 1 1 1 0 1 1 And this is my reasoning: if I consider the first and second operand signed numbers (two's complement), then the result is correct (-3 + -2 = -5) and I don't want an overflow exception. So I would use addu to avoid this

I have a plot of time series in ggplot2 package and I have performed the Moving average and I would like to add the result of moving average to the plot of time series. Sample of Data-set (p31): ambtemp dt -1.14 2007-09-29 00:01:57 -1.12 2007-09-29 00:03:57 -1.33 2007-09-29 00:05:57 -1.44 2007-09-29 00:07:57 -1.54 2007-09-29 00:09:57 -1.29 2007-09-29 00:11:57 Applied code for time series presentation: Require(ggplot2) library(scales) p29$dt=strptime(p31$dt, "%Y-%m-%d %H:%M:%S") ggplot(p29, aes(dt, ambtemp)) + geom_line() + scale_x_datetime(breaks = date_breaks("2 hour"),labels=date_format("%H:

I want to add an external directory to an existing repository. External Dir: /home/some/directory Working Dir: /htdocs/.git If I attempt the following command from the /htdocs dir: git add /home/some/directory I get an error: fatal: '/home/some/directory' is outside repository If I need to do something like that I would normally move that external file or directory into my git repo and symlink it's original location to the new one. mv /home/some/directory /htdocs/directory ln -s /htdocs/directory /home/some/ git add ./directory I use this technique when I am developing a plug-in for an

What is the difference between git add , push and commit ? Just a little confused coming from SVN, where "update" will 'add' stuff, and commit does a "push" and will 'add' as well There are all different functions within git. Hoping for some explanation from your experience. abcd git add adds your modified files to the queue to be committed later . Files are not committed git commit commits the files that have been added and creates a new revision with a log... If you do not add any files, git will not commit anything. You can combine both actions with git commit -a git push pushes your

I have $adate; which contains: Tue Jan 4 07:59:59 2011 I want to add to this date the following: $duration=674165; // in seconds Once the seconds are added I need the result back into date format. I don't know what I'm doing, but I am getting odd results. Note: both variables are dynamic. Now they are equal to the values given, but next query they will have different values. If you are using php 5.3+ you can use a new way to do it. <?php $date = new DateTime(); echo $date->getTimestamp(). "<br>"; $date->add(new DateInterval('PT674165S')); // adds 674165 secs echo $date->getTimestamp(); ?> Just

I want to add 3 minutes to a date/time variable I have, but I'm not sure how to do this. I made the variable from a string like this: (which is in the RFC 2822 date format btw) $date = 2011-10-18T19:56:00+0200 I converted that string into date using this command: $time = date_format(DateTime::createFromFormat("Y-m-d\TH:i:sO", $date), "G:i") Now, I'd like to add 3 minutes to that variable, but I I'm not sure how. I've used the following command in my script before, but that applies to the current date/time, so I'm not sure how to use that for my time variable: $currenttime = date('G:i',