AlternativeHypothesis is an option for hypothesis testing functions like LocationTest that specifies the alternative hypothesis.

InString[n] is a global object that is assigned to be the text of the n\[Null]^th input line.

If you have an equation like 2x==0, it is perfectly clear that the only possible solution is x->0. However, if you have an equation like ax==0, things are not so clear. If a ...

Hash[expr] gives an integer hash code for the expression expr.Hash[expr, " type"] gives an integer hash code of the specified type for expr.

When you write down a set of simultaneous equations in Mathematica, you are specifying a collection of constraints between variables. When you use Solve, you are finding ...

MathieuCPrime[a, q, z] gives the derivative with respect to z of the even Mathieu function with characteristic value a and parameter q.

MathieuSPrime[a, q, z] gives the derivative with respect to z of the odd Mathieu function with characteristic value a and parameter q.

NormalPValue[x] gives the cumulative density beyond x for a normal distribution with zero mean and unit variance.

Mathematica gives you the ability to fine-tune the level of detail for your plots. To get a rough sketch of a plot, you can tell Mathematica to plot fewer points. The more ...

SolveAlways[eqns, vars] gives the values of parameters that make the equations eqns valid for all values of the variables vars.