Proposed method of Hurwitz-Radon Matrices (MHR) is applied in curve modeling via different coefficients: polynomial, sinusoidal, cosinusoidal, tangent, cotangent, logarithmic, exponential, arcsin, arccos, arctan, arcctg or power. where the branches of the arctan function must be taken appropriately.
Preliminary hearings and arraignments both occur before your trial, but have different purposes. The preliminary hearing is where the judge decides if there is enough evidence mounted against you for you to stand trial. The arraignment is where you can file your plea of guilty, not guilty, or no contest.
As with grand juries, preliminary hearings are meant to determine whether there is enough evidence, or probable cause, to indict a criminal suspect. Unlike a grand jury, a preliminary hearing is usually open to the public and involves lawyers and a judge (not so with grand juries, other than the prosecutor).