- The term
figurate number is used by
different writers for
members of
different sets of numbers,
generalizing from
triangular numbers to
different shapes...
-
Erythema (Ancient Gr****: ἐρύθημα, from Gr**** erythros 'red') is
redness of the skin or
mucous membranes,
caused by
hyperemia (increased
blood flow) in...
-
Figurate erythema describes a rash
linked to
various skin conditions,
characterized by
multiple red, wavy rings,
concentric circles, and arcs, typically...
-
arranged in an
equilateral triangle.
Triangular numbers are a type of
figurate number,
other examples being square numbers and cube numbers. The nth triangular...
- 19 (nineteen) is the
natural number following 18 and
preceding 20. It is a
prime number.
Nineteen is the
eighth prime number. 19
forms a twin
prime with...
- 70 (seventy) is the
natural number following 69 and
preceding 71. 70 is the
fourth discrete sphenic number, as the
first of the form 2 × 5 × r {\displaystyle...
- that,
added to a
given figure,
makes a
larger figure of the same shape.
Figurate numbers were a
concern of
Pythagorean mathematics, and
Pythagoras is credited...
- This is a list of
notable integer sequences with
links to
their entries in the On-Line
Encyclopedia of
Integer Sequences. OEIS core
sequences Index to...
- Michel-marie; Deza,
Elena (2012).
Figurate Numbers.
World Scientific. p. 436. ISBN 978-981-4458-53-5.
Other sources on its
figurate numbers can be
found in the...
-
adopted in the
following sections. The
pronic numbers were
studied as
figurate numbers alongside the
triangular numbers and
square numbers in Aristotle's...