function

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graphs of some trigonometric functions

point in the complex plane

Graph of a functionPart A illustrates the general idea of graphing any function: choose a value for the independent variable, t, calculate the corresponding value for f(t), and repeat this process until the general shape of the graph is apparent. (In practice, various techniques are available to reduce the number of values needed to determine the graph's basic shape.) In part B a specific function, the parabola f(t) = t2, is graphed for further illustration.

Figure 1: Graph of values of the function y = f(x) = 2 - x + x2 for x = 0, 1, 2, 3, and 4.

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Saint Lucia Day. Young girl wears Lucia crown (tinsel halo) with candles. Holds Saint Lucia Day currant laced saffron buns (lussekatter or Lucia's cats). Observed December 13 honor virgin martyr Santa Lucia (St. Lucy). Luciadagen, Christmas, Sweden

7 Winter Solstice Celebrations From Around the World

Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,

Which Religion Is the Oldest?

Watergate scandal. Richard M. Nixon. President Nixon gives a press conference and talks to the press, March 12, 1971.

9 American Political Scandals

Close-up of ostriches (Struthio camelus) necks and heads; location unknown.

6 of the World's Most Dangerous Birds

Ice Sledge Hockey, Hockey Canada Cup, USA (left) vs Canada, 2009. UBC Thunderbird Arena, Vancouver, BC, competition site for Olympic ice hockey and Paralympic ice sledge hockey. Vancouver 2010 Olympic and Paralympic Winter Games, Vancouver Olympics

10 Best Hockey Players of All Time

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

The Jeff Koons tulips sculputure outside the Guggenheim Museums in Bilbao, Spain, Basque Country.

What’s the Difference Between Modern and Contemporary Art?

function: Media

mathematics

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cubic equation

cubic equation

Plot of the cubic equation f(x) = x3 − 3x...

Encyclopædia Britannica, Inc.

graphs of some trigonometric functions

graphs of some trigonometric functions

Note that each of these functions is periodic. Thus, the sine and cosine functions...

Encyclopædia Britannica, Inc.

point in the complex plane

point in the complex plane

A point in the complex plane. Unlike real numbers, which can be located by a single...

Encyclopædia Britannica, Inc.

Graph of a functionPart A illustrates the general idea of graphing any function: choose a value for the independent variable, t, calculate the corresponding value for f(t), and repeat this process until the general shape of the graph is apparent. (In practice, various techniques are available to reduce the number of values needed to determine the graph's basic shape.) In part B a specific function, the parabola f(t) = t2, is graphed for further illustration.

Graph of a functionPart A illustrates...

Encyclopædia Britannica, Inc.

Figure 1: Graph of values of the function y = f(x) = 2 - x + x2 for x = 0, 1, 2, 3, and 4.

Figure 1: Graph of values of the function y = f(x) = 2...

Encyclopædia Britannica, Inc.

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