This category contains built-in LSL functions. Mutability All types in LSL are immutable (they can't be mutated by side effect), variables can only be changed by being overwritten. There is no way to indirectly modify a variable's value; the only way is through direct interaction with a storing operator (=, +=, -=, *=, /=, %=, ++, --). Built-in functions will never modify the variables used as par