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Sibilance is used most successfully in stanzas one and five. The writer uses sibilance to imitate the sound and atmosphere she describes. In stanza one, she is imitating the "silent sign," and in stanza five she is trying to create a serene atmosphere that is "soft" and "sweetly spoke" by using the soft "s" sound repeatedly.
Babylonian mathematics were written using a sexagesimal (base-60) numeral system. From this derives the modern-day usage of 60 seconds in a minute, 60 minutes in an hour, and 360 (60 × 6) degrees in a circle, as well as the use of minutes and seconds of arc to denote fractions of a degree. Babylonian advances in mathematics were facilitated by ...
Sunflowers do not always point to the Sun. Flowering sunflowers face a fixed direction (often east) all day long, but do not necessarily face the Sun. [123] However, in an earlier developmental stage, before the appearance of flower heads, the immature buds do track the Sun (a phenomenon called heliotropism). Mature flowers face east.
This is a timeline of pure and applied mathematics history.It is divided here into three stages, corresponding to stages in the development of mathematical notation: a "rhetorical" stage in which calculations are described purely by words, a "syncopated" stage in which quantities and common algebraic operations are beginning to be represented by symbolic abbreviations, and finally a "symbolic ...
New Wave writers often saw themselves as part of the modernist tradition and sometimes mocked the traditions of pulp science fiction, which some of them regarded as stodgy, adolescent and poorly written [124] John Brunner, M. John Harrison, Norman Spinrad, Barrington J. Bayley, Thomas M. Disch: Minimalism
Some writers took the fourth dimension to be one of time, which is consistent with the physical principle that space and time are fused into a single continuum known as spacetime. Others preferred to think of the fourth dimension in spatial terms, and some associated the new mathematics with wider changes in modern culture.
When defining a term, do not use the phrase "if and only if". For example, instead of A function f is even if and only if f(−x) = f(x) for all x; write A function f is even if f(−x) = f(x) for all x. If it is reasonable to do so, rephrase the sentence to avoid the use of the word "if" entirely. For example,
However, some authors such as Diophantus used some symbols as abbreviations. The first systematic use of formulas, and, in particular the use of symbols for unspecified numbers is generally attributed to François Viète (16th century). However, he used different symbols than those that are now standard.