What is "trix"

Trix is a brand of breakfast cereal made by General Mills in Minneapolis, Minnesota, for the North American market and by Cereal Partners (using the Nestlé brand) elsewhere in the world. The cereal consists of fruit-flavored, sweetened, ground- corn pieces. They were originally spherical cereal pieces, but in 1991, were changed to puffed fruit-shaped pieces. In 2007, they reverted to their original shape in the United States. However, they maintained the fruit-shaped pieces in Mexico.

Trix may refer to:

• Trix (cereal), a breakfast cereal
• Trix (company), the German company that produced Trix construction and model train sets
• Trix (construction sets), originally produced in Germany and later in the UK
• Trix (technical analysis), a technical analysis oscillator
• TRIX (operating system), start for the first attempt at the GNU kernel
• Kodak Tri-X, a popular brand of black-and-white photographic film from Kodak
• TriX (syntax), a syntax for Resource Description Framework (RDF) data (a serialization of Resource Description Framework models)

Trix (or TRIX) is a technical analysis oscillator developed in the 1980s by Jack Hutson, editor of Technical Analysis of Stocks and Commodities magazine. It shows the slope (i.e. derivative) of a triple-smoothed exponential moving average. The name Trix is from "triple exponential."

Trix is calculated with a given N-day period as follows:

• Smooth prices (often closing prices) using an N-day exponential moving average (EMA).
• Smooth that series using another N-day EMA.
• Smooth a third time, using a further N-day EMA.
• Calculate the percentage difference between today's and yesterday's value in that final smoothed series.

Like any moving average, the triple EMA is just a smoothing of price data and, therefore, is trend-following. A rising or falling line is an uptrend or downtrend and Trix shows the slope of that line, so it's positive for a steady uptrend, negative for a downtrend, and a crossing through zero is a trend-change, i.e. a peak or trough in the underlying average.

The triple-smoothed EMA is very different from a plain EMA. In a plain EMA the latest few days dominate and the EMA follows recent prices quite closely; however, applying it three times results in weightings spread much more broadly, and the weights for the latest few days are in fact smaller than those of days further past. The following graph shows the weightings for an N=10 triple EMA (most recent days at the left):

Triple exponential moving average weightings, N=10 (percentage versus days ago)

Note that the distribution's mode will lie with p's weight, i.e. in the graph above p carries the highest weighting. An N of 1 is invalid.

The easiest way to calculate the triple EMA based on successive values is just to apply the EMA three times, creating single-, then double-, then triple-smoothed series. The triple EMA can also be expressed directly in terms of the prices as below, with p today's close, p yesterday's, etc., and with $f = 1 - {2\over N+1} = {N-1\over N+1}$ (as for a plain EMA):

The coefficients are the triangle numbers, n(n+1)/2. In theory, the sum is infinite, using all past data, but as f is less than 1 the powers f become smaller as the series progresses, and they decrease faster than the coefficients increase, so beyond a certain point the terms are negligible.

TRIX is a network-oriented research operating system developed in the late 1970s at MIT's Laboratory for Computer Science (LCS) by Professor Steve Ward and his research group. It ran on the NuMachine and had remote procedure call functionality built into its kernel, but was otherwise a Version 7 Unix workalike.

Trix is a German company that originally made Trix metal construction sets. one of its co-founders was Stephan Bing, the son of the pioneer toy-maker industrialist Ignaz Bing. In 1935 the company began producing the electrically powered model trains that it became famous for, under the Trix Express label. Prior to the outbreak of World War II the Trix company produced a small range of fairly unrealistic AC powered three rail models running at 14 volts.

Trix is an Argentinian singing group consisting of identical triplet singers María Laura, María Emilia, and María Eugenia Fernández Roussee. The group is mostly known in South America and Spain as Trillizas de Oro.

Their most successful songs under the name Trix are "C'est la vie" and "Fantasy", both released in 1981. The triplets also played in several Argentinian and Spanish films and in some Italian TV shows.

The singers were born on 5 July 1960. María Laura is the mother of Paulina Trotz, a model from Argentina, and published some 7" records in Japan.

TriX (Triples in XML) is a serialization format for RDF ( Resource Description Framework) graphs. It is an XML format for serializing Named Graphs and RDF Datasets which offers a compact and readable alternative to the XML-based RDF/XML syntax.

Trix model construction sets were originally produced in 1931 by a Nuremberg company, Andreas Förtner (Anfoe). The German patent for the basic Trix pieces had been granted the previous year, in 1930.

The origin of the name Trix is uncertain; it has been suggested (by Adrie Wind) that it could have referred to the triple-hole configuration of the basic pieces.

A friendship between Stephan Bing, owner of Anfoe, and the English toy manufacturer W J Bassett-Lowke led to the founding of the London company Trix Ltd in 1932. In the United Kingdom, Trix sets challenged the British-invented Meccano model construction sets.

(See Trix (company) for details of the model electric trains that the German company also began producing in 1935).