"Defining Variables" discussed assignments such as x=y which set x equal to y. Here we discuss equations, which test equality. The equation x==y tests whether x is equal to ...

When you make a function definition using :=, the value of the function is recomputed every time you ask for it. In some kinds of calculations, you may end up asking for the ...

When you make a sequence of definitions in Mathematica, some may be more general than others. Mathematica follows the principle of trying to put more general definitions ...

For minimization problems for which the objective function is a sum of squares, it is often advantageous to use the special structure of the problem. Time and effort can be ...

You can think of an expression like f[x] as being formed by applying an operator f to the expression x. You can think of an expression like f[g[x]] as the result of composing ...

SQLConnectionPoolClose[pool] closes a connection pool.

LoadJavaClass[classname] loads the specified class into Java and sets up definitions so that it can be used from Mathematica.

$RelaxedTypeChecking is a flag that can be set to True to speed up the validation performed in Mathematica (via pattern tests) on arrays of data being sent as arguments to ...

ReleaseCOMObject[obj] releases COM resources held by the specified .NET object.

TetGenGetFaces[expr] gets the faces in a TetGen expression.