Trapezoidal rule - trapezoidal formula

Japanese: 台形公式 - だいけいこうしき(英語表記)trapezoidal formula
Trapezoidal rule - trapezoidal formula
Also known as the trapezoidal rule. One of the formulas for approximating a definite integral. When calculating an approximation of a definite integral, divide the interval [ a , b ] into n small intervals using n + 1 subintervals x0 , x1 , x2 , ..., xn (where a = x0 < x1 < x2 < ... < xn -1 < xn = b ), calculate the value f ( xi ) of f ( x ) for each subinterval xi ( i = 0, 1, 2, ..., n ), and substitute the value into the following formula.
The above formula is called the trapezoidal rule because it approximates a definite integral as a sum of trapezoids. It corresponds to the Newton–Cotes formula when n = 1.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
台形則ともいう。定積分の近似値を求める公式の一つ。定積分の近似値を計算するとき,区間 [ab] を n+1 個の分点 x0x1x2 ,…,xn (ただし ax0x1x2<…<xn-1xnb ) で n 個の小区間に等分し,各分点 xi ( i=0 ,1,2,…,n ) に対する f(x) の値 f(xi) を計算し,次の公式に代入する。
上の公式は定積分の近似値を台形の和として求めるので,台形公式という。これはニュートン=コーツの公式の n=1 の場合にあたる。

出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報

<<:  Pouch animal - Aschelminthes

>>:  Trapezoid - trapezoid

Recommend

Sarah (name) (English spelling)

…This name is thought to have meant “the father i...

Rock willow fern - Rock willow fern

...It is distributed from the Himalayas to China,...

herred

... In Norway, the area from which one ship was s...

Umegashima [Hot Spring] - Umegashima

Located in Shizuoka City, Shizuoka Prefecture, at ...

Barringer Meteor Crater - Barringer Meteor Crater

Also known as the Arizona Meteor Crater. A meteori...

Mendeleev (English spelling) Dmitriy Ivanovich Mendeleev

Russian chemist who discovered the periodic law. ...

Jakob Sprenger

1436-95 German Dominican monk. Born in Rheinfelden...

Nativistic movements; nativism

Generally, this refers to a religious nationalist ...

Flavianus

...He was a key figure in the separation of the M...

Henry, Pierre

…He is the founder of musique concrète (concrete ...

Stoichiometry - stoichiometry

It refers to the quantitative study of elements a...

pater

…Normally, for a genealogical relationship to tra...

Total loss/partial loss - zensonbunson

Damage caused by certain accidents is compensated ...

recognition coloration

...The former are classified as protective colors...