Hacker Newsnew | past | comments | ask | show | jobs | submit | jonsen's commentslogin

There are some really dense people


Some people are dense... now in three dimensions!


> At every place X in the following expression, introduce a boolean negation if there isn’t one (or, equivanently remove one if there is), and

I think it should read:

At every place X in the following expression, introduce a boolean negation if there isn’t one and remove one if there is, and

Maybe even better:

At every place X in the following expression, introduce a boolean negation. If you get two concecutive NOT's, they can be removed.

Next, I don't see how

  timespent <= duration
is the negation of

  duration > time_spent

?


A shift is faster than an add.


On 6502 they are both 2 cycles. On the vast majority of processors I'm aware of, "simple" alu operarations don't vary in execution time


On 8086 or ARM you can get a shift "for free" with your add, although on the 8086 you have to use the LEA instruction.


ADC #immediate is 2 cycles, as is ASL. Are you really multiplying a constant by 3 at runtime? Probably not. ADC zp is 3 cycles. Plus 2 cycles for the CLC.


The M68020 added a dedicated barrel shifter, which could execute much faster then the M68000.


Once I flew north-west at the time of sunset. I had the view of the most beautiful big red sun right at the edge a sea of snow white clouds for more than an hour.


> The vote was 136 for and 70 against.

Amazing that apparently noone just realizes that 136 is less than the double of 70.


?: "Since the word processor was irrelevant to the Shuttle, I wonder why this card wasn't removed to reduce weight."

!: "We obtained access to a Shuttle teleprinter (probably a development system that remained on the ground)"


Granted.


I once needed a special blade for my saw. They only offered a 3-pack so I ordered that, and received 3 3-packs.

I don't know, but I felt that I should report it. Fiddled around for som time on their reporting pages, but absolutely no way to report that kind of error.

Are you in my neighborhood? You can have 3 saw blades for one GG1000 ;-)


Go for what you already have. Use your supervisor to cut and twist your proposal plan to fit 5 months. I don't know where in this world you are, but where I've taught, a master's thesis is about demonstrating what you can do in the time given towards a relevant result. A proposal is a plan. Relevant mileposts should be reached, and the final goal to some extend. But details can be adjusted and cut during the process. A supervisor should help with adjusting the project plan. Up front as well as during your project.


My imagination hears the protesters yell Toxinough! Toxinough!


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: