The first point to note is that symmetric and symmetrical are effectively synonyms for most purposes (but as answers to the earlier indicate, the former has recently become far more common in technical contexts).
By default, compatibilty is strongly non-symmetrical. That's why you always have to lexically specify the symmetric cases with such terms as "mutually compatible" or "compatible with each other"
The correct mathematical term is a palindromic number (or a numerical palindrome). To quote Wikipedia: A palindromic number or numeral palindrome is a number that remains the same when its digits are reversed. Like 16461, for example, it is "symmetrical". The term palindromic is derived from palindrome, which refers to a word (such as rotor or racecar) whose spelling is unchanged when its ...
The three prefixes originally had overlap but some different nuances: "semi-" was used generally and imprecisely: it did mean "half" but with some latitude. "demi" was used to mean half of a figure/body and also "not quite a [noun]" hemi- was used for half of a symmetrical object around the line of symmetry. It was more popular in technical terms. OED: Semi- prefix: Etymology: representing ...
Tiger, Tiger: Symmetricity, Symmetricality, or Symmetricalness? It doesn't really matter whether this or that dictionary includes or omits it. It is the regular product of applying productive derivational morphology to a basic English word for conversion purposes. It doesn’t matter whether you use symmetricity, symmetricality, or symmetricalness — any native speaker and indeed any ...
An interior decorator that knows what they're doing, doesn't have to make everything look symmetrical, it has to feel symmetrical. It has to be balanced, properly using qi while applying feng shui.
Salutation is the term used to describe the beginning of a letter or other correspondence. What is the term used for the closing of a letter? Here are some examples: Yours truly, Sincerely, Best wi...
Portions can be harmonious, balanced, and/or symmetrical but are not required to be, according to how it’s defined. If you draw a potato and it’s taller than a skyscraper, it’s out of proportion. If you draw a potato and there’s a section missing, it’s missing a portion.
The number I am thinking of is 80808. This is a palindrome. However, it is more than a palindrome, because it can be flipped or mirrored and will still read the same way. Is there a word for this?