The flowers are produced on a tall spike, are tubular, and vary in colour with species, from purple to pink, white, and yellow.

In many applications, the Dirac delta is regarded as a kind of limit ( a weak limit ) of a sequence of functions having a tall spike at the origin.

The Dirac delta is used to model a tall narrow spike function ( an impulse ), and other similar abstractions such as a point charge, point mass or electron point.

In applied mathematics, the delta function is often manipulated as a kind of limit ( a weak limit ) of a sequence of functions, each member of which has a tall spike at the origin: for example, a sequence of Gaussian distributions centered at the origin with variance tending to zero.

The inflorescences are borne on stalks typically 5 – 40 cm ( 2. 25-15. 75 in ) tall, and can be a short cone or a long spike, with numerous tiny wind-pollinated flowers.

The largest bromeliad is Puya raimondii, which reaches 3 – 4 m tall in vegetative growth with a flower spike 9 – 10 m tall, and the smallest is Spanish moss.

The flowers are produced on a tall spike, each flower long, most commonly blue to purple in wild plants.

The species Puya raimondii is notable as the largest species of bromeliad known, reaching 3 m tall in vegetative growth with a flower spike 9-10 m tall.

The plant is typically found in boggy lowland areas, and derives its name from the flower which appears as one of many on a spike 20-30 cm tall.

The flowers are produced in a tall, nearly leafless spike 100 – 300 mm long ; each flower is very small ( 3 – 5 mm diameter ), green, with five sepals.

In its second year, the stored nutrients are used to produce a flower spike tall bearing numerous yellow flowers.

The tall pole-like stems end in a dense spike of flowers that can occupy up to half the stem length.

The flowering stem grows to 20 – 35 cm ( rarely to 45 cm ) tall, bearing a spike of 2 – 50 fragrant purple flowers 2 – 3. 5 cm long with a tubular, six-lobed perianth.

The species grow to between 0. 5 – 2 m tall, with interrupted pinnate leaves, and tiny yellow flowers borne on a single ( usually unbranched ) spike.

The flowers are hermaphrodite, produced on a tall spike and only last until the following noon.

Two tall glass sculptures make up the Crown Fountain.

This tall bridge includes a glass covered pylon, which lights up at night, adding a distinctive feature to Toledo's skyline.

A torricellian vacuum is created by filling with mercury a tall glass container closed at one end and then inverting the container into a bowl to contain the mercury.

A large glass bowl with a large flat bottom and tall mostly vertical curved sides is called a hurricane.

* Halo-halo: a popular Filipino dessert that is a mixture of shaved ice and milk to which are added various boiled sweet beans and fruits, and served cold in a tall glass or bowl.

* " A Schooner Of Science " A tall, refreshing glass of science to stave off the scurvy.

The tall Great East Window, created by John Thornton in the early fifteenth century, is the largest example of medieval stained glass in the world.

The street-level structures are of white Portland stone with tall double-height ticket halls, with the famous London Underground roundel made up in coloured glass panels in large glazed screens.

This battlemented sandstone structure once had a tall tower to the East near the entrance front which was dominated by a huge entrance portal surmounted by a large tracery window which contained Victorian armorial stained glass.

Roseland is an example of Victorian Gothic Revival style, which can be seen in its pointed gables, scrolled bargeboards, many tall chimneys, and leaded glass windows in diamond shapes.

The courthouse in the center of Gainesville features black and white marbled interiors and a tall central atrium capped by a stained glass skylight under the tower.

Large glass windows allow visitors to look into the habitat furnished with live trees and tall grasses.

The burner is equipped with a tall glass chimney, of around 12 inches tall or taller, to provide the powerful draft this lamp requires to burn properly.

Restaurant milkshakes are usually prepared in a steel cup, and served in a tall glass with toppings and a straw.

Planned in 1920, the monument, was to be a tall tower in iron, glass and steel which would have dwarfed the Eiffel Tower in Paris ( the Monument to the Third International was a third taller at 1, 300 feet high ).

* The Kev Carmody song " Elly " mentions the line " She gazed up at the tall glass and concrete walls at Main Street Surfers Paradise ".

It is served in a tall glass with a straw, often with ground pistachio nuts sprinkled on top.

The most striking feature of the station is the tall concrete and glass trainshed roof and platform canopies which are supported by portal frames of narrow blade-like concrete columns and beams rising from the platforms and spanning across the tracks.

Standing about fifty-six inches tall, the doll consisted of a modeled torso made of flax fiber, glue, and plaster ; a mask-like head of the same material with glass eyes and a long, unkempt wig ; and a pair of legs made from broomsticks or dowel rods.

The Syrian actor Ghassan Massoud was also praised for his portrayal of Saladin, described by The New York Times as " cool as a tall glass of water ".

There were claw-footed loo tables, and bedsteads and chairs resting on feet where the claws clutched a ball ; certain tall secretaires, whose glass doors were sashed and latticed, were a nearly universal article ; and there were charming light chairs of satin wood and marquetry — for satin wood had come in with the last as mahogany had with the first quarter of the century, and it would be difficult to imagine woods capable of producing more beauty than the creamy richness of the one or the wine-dark depths of the other, especially when ornamented, as frequently was the case, with medallions painted by Angelica Kauffmann and by Giovanni Cipriani.

Originally the drink was served in a tall glass packed with cracked ice.

The stele is 20 feet ( 6 metres ) tall and encased in glass structure to protect it from the elements and graffiti.

alt = A building complex with a wide glass building on the left and a tall and medium height office building on the right.

The round minarets, tall and graceful, rise from rectangular bases and have three platforms from which the muezzin can chant his call to prayer.

The fruit is a round to oval drupe 3 – 6 cm ( rarely to 8 cm ) tall and 3-4 cm broad, borne in a loose pendant cluster of 10-20 together.

alt = Black-and-gray 1980s-era base station, with tall round desk microphone

The building is of red brick with white stone quoins and has tall windows with round arches, arranged in pairs.

A stone wall, carven with figures, runs round it ; within is a grove of very tall trees growing round a great shrine, wherein is the image of the goddess ; the temple is a square, each side measuring a furlong.

The round tower is about 35-metres tall, and is in very good condition, although it is not possible to go inside.

The round tower at Glendalough, Ireland, is approximately thirty metres tall

Descriptions of Lucayan houses by the Spanish match those of houses used by Tainos in Hispaniola and Cuba: shaped like a round tent, tall, made of poles and thatch, with an opening at the top to let smoke out.

He was tall and slender, but with a round double-chin like Robert Morley's, and a sharp nose.

Angel food cake is usually baked in a tube pan, a tall, round pan with a tube up the center that leaves a hole in the middle of the cake.

A toque blanche ( French for " white hat "), often shortened to toque, is a tall, round, pleated, starched white hat worn by chefs.

He was described as being " tall and stout " and having " a round, moonlike yellow face " topped by " bulging eyebrows " and " sunken eyes ".

It comprises two big stones, one round with a hole in the middle and the other, at six foot, tall and slender.

Fisher was five feet seven inches tall and stocky with a round face.

::" if the day were bright, you observed upon the house – tops, stretching far away, a long dark path ; the shadow of the Monument ; and turning round, the tall original was close beside you, with every hair erect upon his golden head, as if the doings of the city frightened him.

What makes the place unique is the unusual riddle of tall pine trees flourishing round its vicinity.

The 6-foot tall, 190-pound Hejduk was drafted 87th overall by the Quebec Nordiques in the 4th round of the 1994 NHL Entry Draft, after a year with HC Pardubice in the Czech Extraliga, after winning Czech Rookie of the Year with 11 goals in 32 games.

The leaves are large, on stout 80 – 120 cm tall stems, round, with a diameter of 40 – 70 cm.

The round tower is some 30 metres ( 100 ft ) tall and can be climbed using internal ladders.

The gallery passes round three sides of a tall bastion and an assailant rushing through it would be under attack from the battlements of the bastion and from those of a high wall and strong tower on the counter scarp of the moat, which are so built as to face in that direction.

The chefs are identified by the shape of their toques: Oscar's is big and round ; Angelo's is short and rectangular ; Jacques ' is curved ; and Zorba's is tall and slender.

* Ellie Dee — Cherry's best friend, Ellie is tall, slender, and dark-haired, and wears large, round eyeglasses.

Between the pilasters in the transept there are tall, blank, round headed panels and, above them, roundels, common Renaissance decorative motifs.