Have you considered 3D cube + 2 sliders to control the other 2 dimensions? Or an 'animation' that scrolls through one of the dimensions? This is standard technique for visualizing 4D objects (like the Tesseract)

@miraculixx If I were you, I'd make this into an answer, as it is the most correct explanation

I think you're wrong here: you don't need to 'convey' a copy in order to be obligated to provide the source of the program. Take a look at article 13 of the AGPL.

Best answer (IMO). There is yet to be a major lawsuit regarding whether GPL applies to dynamic linking.

@LieRyan If you only call const methods on this vector, I'm pretty sure many optimizing compilers will figure it out.

@SoftwareEngeneeringLearner Sorry, my bad here. You are correct and your question makes more sense now, but I really think you should either rephrase, or even better, ask a new question about this, specifying the differing return types. Having two methods with the same signature, but different return types (IMO) can be an issue.

@SoftwareEngeneeringLearner In Java method signature includes return type

+1, just one thing: I'm certain there are people who use if(const == var) just because they've seen other people do it and repeat it mechanically, so I'd ask why they do it this way.

You just specify the MainFactory and the platform runtime's factory creates your MainFactory, so that it can create the Main class. Simple as that (joking ofc). Otherwise, solid answer.

@JörgWMittag True, but then again, we all start with 'IANAL' and conclude with 'ask a real lawyer'.

One of the two good answers. Don't use sqrt unless crucial! You don't need to degrade integer calculations to FP... not to mention worsen the precision of the FP computation.