# Mathematics Reference Libraries

Algebra, from the Arabic al-jebr, meaning “reunion of broken parts”, is one of the wide-ranging parts of mathematics, combined with number theory, geometry, and analysis. Algebra can basically be considered as doing computations much like that of arithmetic with non-numerical mathematical objects. Initially, these objects were variables that represented either numbers that weren’t yet...

Geometry is a branch of mathematics that is concerned with questions of shape, size, relative position of figures, and the properties of space. A mathematician who works in the geometry field is called a geometer. Geometry arose independently in numerous early cultures as a body of practical knowledge concerning areas, lengths, and volumes, with elements of a formal mathematical science...

Applied mathematics is a branch of mathematics that focuses on mathematical methods that are usually used in science, engineering, business, and industry. Therefore, “applied mathematics” is a mathematical science with specialized knowledge. The term “applied mathematics” also explains the professional specialty in which mathematicians work on practical problems; as a profession focused...

In mathematics and computer science, an algorithm is a step-by-step procedure for calculations. Algorithms are used for calculations, automated reasoning, and data processing. An algorithm is an effective technique expressed as a finite list of well-defined instructions for calculating a function. Starting from an initial state and an initial input, the instructions describe a computation...

Symbol: ZEUXI Group: Monocot Family: Orchidaceae Distribution: County distributions for the following U.S. states are available at PLANTS:FL, GA, LA Classification: Kingdom Plantae – Plants Subkingdom Tracheobionta – Vascular plants Superdivision Spermatophyta – Seed plants Division Magnoliophyta – Flowering...

Symbol: ZAKA Group: Dicot Family: Rutaceae Duration: Perennial Growth Habit: Tree Native Status: HI N Synonyms: ZAGL Zanthoxylum glandulosum Hillebr., non Raf. ZAHI Zanthoxylum hillebrandii P.G. Waterman ZAHIH Zanthoxylum hillebrandii P.G. Waterman var. hiloense (Sherff) H. St. John ZAKAK2 Zanthoxylum kauaense A. Gray var. kohalanum...

Symbol: XANTH8 Group: Lichen Family: Catillariaceae Classification: Kingdom Fungi – Fungi Division Ascomycota – Sac fungi Class Ascomycetes Order Lecanorales Family Catillariaceae Genus Xanthopsorella Kalb & Hafellner – xanthopsorella lichen

Symbol: XANTH2 Group: Dicot Family: Asteraceae Distribution: County distributions for the following U.S. states are available at PLANTS:AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY Classification: Kingdom Plantae...

Symbol: WOODS Group: Fern Family: Dryopteridaceae Distribution: County distributions for the following U.S. states are available at PLANTS:AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, ME, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY Classification: Kingdom Plantae...

- A person who stands up for something, as contrasted to a bystander who remains inactive.
- One of the upright handlebars on a traditional Inuit sled.