Zanussi

Zanussi is an Italian producer of home appliances that in 1984 was bought by Electrolux. Zanussi has been exporting products from Italy since 1946.

History

The Zanussi Company began as the small workshop of Antonio Zanussi in 1916. The 26-year-old son of a blacksmith in Pordenone in Northeastern Italy began the business by making home stoves and wood-burning ovens.

In 1933 Antonio Zanussi launched REX, the company's newest trademark at that time, to coincide with a huge media event of the day: the new record for a transatlantic crossing (Gibraltar to New York) with which the Italian liner “Rex” conquered the Blue Riband.

In 1946 Antonio Zanussi died and management of the family business passed to his sons Lino and Guido. Under the leadership of Lino, the company developed into a modern industrial concern and in 1951, with a workforce of over 300, the company began to diversify into gas and electric, and combined gas/electric ovens; and, with growing availability and popularity of gas cylinders, Zanussi brought out their first gas cooker – the Rex 401.

Washing machine

A washing machine (laundry machine, clothes washer, or washer) is a machine used to wash laundry, such as clothing and sheets. The term is mostly applied to machines that use water as opposed to dry cleaning (which uses alternative cleaning fluids, and is performed by specialist businesses) or ultrasonic cleaners.

Washing by hand

Laundering by hand involves soaking, beating, scrubbing, and rinsing dirty textiles. Before indoor plumbing, the housewife also had to carry all the water used for washing, boiling, and rinsing the laundry; according to an 1886 calculation, women fetched water eight to ten times every day from a pump, well, or spring. Water for the laundry would be hand carried, heated on a fire for washing, then poured into the tub. That made the warm soapy water precious; it would be reused, first to wash the least soiled clothing, then to wash progressively dirtier laundry.

Removal of soap and water from the clothing after washing was originally a separate process. First, soap would be rinsed out with clear water. After rinsing, the soaking wet clothing would be formed into a roll and twisted by hand to extract water. The entire process often occupied an entire day of hard work, plus drying and ironing.

Full cycle

A full cycle or full period is a mathematical term that describes the behavior of a pseudorandom number generator (PRNG) over its set of valid states. In particular, a PRNG is said to have a full cycle if, for any valid seed state, the PRNG traverses every valid state before returning to the seed state, i.e. the period is equal to the cardinality of the state space.

The restrictions on the parameters of a PRNG for it to possess a full cycle are known only for certain types of PRNGs, such as, but not limited to, linear congruential generators and linear feedback shift registers. There is no general method to determine whether a PRNG algorithm is full-cycle short of exhausting the state space, which may be exponentially large compared to the size of the algorithm's internal state.

Example 1 (in C++)

Given a random number seed that is greater or equal to zero, a total sample size greater than 1, and an increment coprime to the total sample size, a full cycle can be generated with the following logic. Each nonnegative number smaller than the sample size occurs exactly once.