• 4 Posts
  • 307 Comments
Joined 1 year ago
cake
Cake day: November 24th, 2023

help-circle


  • Good and bad use-cases for floats

    Floats can be used everywhere where it doesn’t matter that you can’t store a 100% accurate base ten representations. For example positions and speeds in 3D games and animations, “analog” values like temperatures, speed of a vehicle, geo positions with longitude and latitude, a persons weight or heart pressure. In fact if you develop games there is no way around 32 bit floats because GPUs are f32 number crunching beasts. Modern 3D games wouldn’t be possible without all those fast f32 calculations.

    You shouldn’t use binary floats if you need or expect accurate base ten calculations (addition, subtraction, multiplication, - note that divisions also introduce errors quickly in decimal types) and for dimensions that have a smallest unit that can’t be broken down, for example like money. If you need to handle money just store the amount of cents as integers and only divide by 100 in your display function.

    This is exactly my point. Don’t use floats when you need to get accurate stuff, but use it when you need a “feel” for it











  • Mint is my favourite distro. Is everything I want from my computer.

    … Except the Nvidia support. I need the actual proprietary driver for cuda and it’s not the easiest of rides.

    (I switched to Nobara for better support and now the drivers memory leak. I need the courage to distrohop again)





  • I think I know what happened. Did you do something like PATH="/usr/bin/golang"?

    Because doing that overwrite your path variable. You need to set it like this:

    PATH="{PATH}:/usr/bin/golang" to append to the path.

    And well… I hope you got a backup of your /root/.bashrc or whatever you use as a terminal. Restoring it should fix it

    Edit: you should be able to use any program by appending /usr/bin/ to your commands, as long as it’s in this directory