A magic number is a direct usage of a number in the code. For example, if you have (in Java): public class Foo { public void setPassword(String password) { // don’t do this if (password.length() > 7) { throw new InvalidArgumentException(“password”); } } } This should be refactored to: public class Foo { public static … Read more
The magic number is supposed to be 32 random bits, where each is equally likely to be 0 or 1, and with no simple correlation between the bits. A common way to find a string of such bits is to use the binary expansion of an irrational number; in this case, that number is the … Read more
I got that error when I accidentally used load() instead of source() or readRDS().
0.0039215689 is approximately equal to 1/255. Seeing that this is OpenGL, performance is probably important. So it’s probably safe to guess that this was done for performance reasons. Multiplying by the reciprocal is faster than repeatedly dividing by 255. Side Note: If you’re wondering why such a micro-optimization isn’t left to the compiler, it’s because … Read more
Add the cents to the number and you get 2314885530818450000, which in hexadecimal is 2020 2020 2020 1250. Do you see the pattern? The first six bytes have been overwritten by spaces (hex 20, dec 32).
A magic number is a direct usage of a number in the code. For example, if you have (in Java): public class Foo { public void setPassword(String password) { // don’t do this if (password.length() > 7) { throw new InvalidArgumentException(“password”); } } } This should be refactored to: public class Foo { public static … Read more