Some articles on formula, formulas:

Molecular Structure Diagram
... The structural formula of a chemical compound is a graphic representation of the molecular structure, showing how the atoms are arranged ... Unlike chemical formulas or chemical names, structural formulas provide a representation of the molecular structure ... Chemists nearly always describe a chemical reaction or synthesis using structural formulas rather than chemical names, because the structural formulas ...
Curve Resistance - Inaccurate Formulas - Usefulness of Erroneous Formulas
... These erroneous formulas are likely of more than just historical interest since they tend to point the way to more accurate formulas ... The k/R type formulas imply that the curve resistance increases with decreasing radius (and conversely) ...
List Of Price Index Formulas
... A number of different formulas, more than hundred, have been proposed as means of calculating price indexes ... While price index formulas all use price and possibly quantity data, they aggregate these in different ways ... Two of the most commonly used price index formulas were defined by German economists and statisticians √Čtienne Laspeyres and Hermann Paasche, both around 1875 when investigating price ...
Chemical Names in Answer To Limitations of Chemical Formulas
... The alkene called but-2-ene has two isomers which the chemical formula CH3CH=CHCH3 does not identify ... Such extra symbols violate the rules for chemical formulas, and begin to enter the territory of more complex naming systems ... As noted above, in order to represent the full structural formulas of many complex organic and inorganic compounds, chemical nomenclature may be needed which ...
List Of Countries By Past And Future Population - Formulas Used To Calculate Demographic Growth
... The formulas used to carry out these last calculations, are the standard ones, used both by the United Nations Statistics Division and by National Census Offices worldwide ... In terms of natural logarithms, both formulas can be expressed as follows ... where five-year periods are involved, we can simplify the formulas, leaving them like this and ...

Famous quotes containing the word formulas:

    That’s the great danger of sectarian opinions, they always accept the formulas of past events as useful for the measurement of future events and they never are, if you have high standards of accuracy.
    John Dos Passos (1896–1970)

    You treat world history as a mathematician does mathematics, in which nothing but laws and formulas exist, no reality, no good and evil, no time, no yesterday, no tomorrow, nothing but an eternal, shallow, mathematical present.
    Hermann Hesse (1877–1962)

    It is sentimentalism to assume that the teaching of life can always be fitted to the child’s interests, just as it is empty formalism to force the child to parrot the formulas of adult society. Interests can be created and stimulated.
    Jerome S. Bruner (20th century)