# mekso -mek-me'o- gismu

x1 [quantifier/expression] is a mathematical expression interpreted under rules/convention x2.

## On gloss:

li'ai in sense "as a name"
unevaluated mekso as name.

## In definition:

tu'o
null operand (used in unary mekso operations).
su'ifa'uvu'u
mekso operator: plus or minus with order important, (((a±b)±c)±...±z)
su'ijavu'u
mekso operator: plus or minus, (((a±b)±c)±...±z)
bai'i
mekso string operator (ternary): find-and-replace; in string/text/word/sequence X1 formally replace X2 (ordered tuple of terms to be replaced) with X3 (ordered tuple of terms to be respectively substituted)
be'ei'oi
ternary mekso operator: x1th Bergelson multiplicative interval with exponents bounded from above by function x2 and with sequence of shifts x3, where exponents belong to set x4
bei'u'i
unary mekso operator: nth Bernoulli number Bn of the second kind (B1 = +1/2 = >0).
boi'ai
unary mekso operator: immediately convert number into a single digit.
boi'e'u
mekso operator/function terminator (in Polish notation): inserts exactly enough "{boi}"'s consecutively so as to terminate the most recently uttered operator/function in a mekso expression
boi'oi
preserve formal interpretation of mekso subexpression with no substitutions made
ca'ei'a
Unary mekso operator: unit vector/normalization of the argument (vector) X.
ca'o'e
mekso 4-nary operator: spherical harmonics on colatitudinal/polar angle a and azimuthal/longitudinal angle b of unassociated order c and associated order d.
ci'o'au
mekso operator (binary): projection function; the Bth term/entry ("element") of tuple A
cu'au'ei
mekso binary/unary operator: multinomial coefficient/binomial coefficient/choose
da'a'au
mekso operatory: prime mark append
de'au'u
mekso ternary operator: positive super-logarithm; the super-logarithm (inverse operator of hyper-operator with respect to "height" of power tower) of a with base b and of order c-2.
dei'au'o
mekso binary operator: Lambert product-log W function; W(a, b)
du'a'e
mekso n-ary ordered operator: structure creator/ordered tuple, 'endow'; the structure formed by underlying set X1 (as) endowed with element, order, quoted operator, etc. X2, X3, ...
du'a'o
mekso binary operator: extract substructure/underlying set/endowing operator; the substructure (general sense; includes just operator, order, set, etc.) of X1 (structure; explicitly given by {du'a'e}) which is formed by collecting the ith entries of that {du'a'e}-tuple in order together into their own {du'a'e}-tuple (or by extracting them naked into the ambient environment if X2 is a singleton) for all i in set X2
du'ei
mekso binary operator: left-handed vectorial cross product (ordered input), -a \times b = b \times a (if using right-hand convention - notice the negative sign/operator or order).
fa'ai'ai
mekso k-ary operator, for natural k and 1 < k < 5: ordered input (f, g, S, m) where f and g are functions, S is a set of positive integers or "ro" (="all"), and m is 0 or 1 (as a toggle); output is a function equivalent to the function f as applied to an input ordered tuple with g applied to the entries/terms with indices in S (or to all entries/terms if S="ro") if m=0, or g left-composed with the same if m=1.
fa'ei
Unary mekso operator: reverse finite ordered sequence, tuple, list, string, etc.
fe'au'u
mekso ternary operator: positive super-root; the bth super-root (inverse operator of hyper-operator with respect to base) of a of order c-2.
fe'ei
binary mekso operator: divided by (fraction): a/(b...)
fei'i
mekso variable arity (at most ternary) operator: number of prime divisors of number A, counting with or without multiplicity according to the value B (1 or 0 respectively), in structure C
fi'au
mekso operator: continued fraction, Kettenbruch notation; for ordered input (X1, X, where: X1 is an ordered pair of functions and X2 is a free or dummy variable/input/index which ranges through set X3 in order(ing) X4, the result is K(X for Kettenbruch notation K.
ga'ai
unary mekso operator: Lorentz-Einstein gamma factor +1/((1-(|X|2)) for input X.
gau'a
mekso (no-more-than-4-ary) operator: Gaussian function f(x, a, b, c) = c e-((x-a).
ga'u'au
mekso n-ary operator: append contravariant (upper) indices to tensor
gei'i'e
mekso unary operator: converts a string of digits which includes {pi} to the same string of digits without {pi}; if {pi} is not present in the original/input string, the output is identical
gu'au'i
mekso operator, variable arity - algebraic structure order of X1; OR: order of/(size of) period of element X1 in algebraic structure X2 under operator/of type X3
je'e'e
mekso operator: assoviated Legendre polynomial in a with unassociated order b and associated order c
ji'e'ai
mekso unary operator: determinant, det(A)
ji'i'u
mekso at-most-4-ary operator: a rounding function; ordered input list is (x,n,m,t) and the output is b(-t) × round(bt × x), with rounding preference n and where the fractional part of bt × x being 1/2 causes the function to map bt × x to the nearest integer of form 2Z+m, for base b and an integer Z determined by context
jo'ei'i
nonlogical connective (and mekso operator) - symmetric difference of sets
joi'i
mekso string operator (n-ary): formal left-concatenation; X1+X, where Xi is a string/word/text
ka'au
mekso unary operator: cardinality (#, | |)
kei'ai
mekso style converter: elementwise application of operator
kei'au
mekso operator: finite result set derived from/on set A with/due to operator/function B under ordering of application C
kei'i
non-logical connective/mekso operator - of arity only 1 xor 2: set (absolute) complement, or set exclusion (relative complement). Unary: X1 ^C; binary: X1 - X.
ku'au'a
mekso (n+1)-ary operator: q-analog converter - the ath analog of b (quoted operator) applied to operands c, d, ...
ku'oi'u
closing bracket/terminator for mekso expression interpretation modifiers
ma'au
Binary mekso operator: uniform probability A(X2)u(X for input (X1,X where X1 is a number and X2 is a set or space. (See notes for details).
mai'u
unary mekso operator: signum function
mau'au
mekso: conversion of operator/function to operand
me'ei'o
mekso n-ary operator: interleave sequences
mu'ai'au
mathematical/logical/mekso ternary operator: μ (mu) operator: outputs the most extreme extended-natural number that satisfies relationship/predicate A, where extremeness is bounded by B and of a version determined by C; error output is -1
mu'au
unary mekso operator: measure of the complement; 1 - x1.
na'au
converts an unevaluated mekso expression into a sumti referencing its evaluated result (if sensible/defined)
nei'au
unary mekso operator: (-1)x
ni'a'au
mekso n-ary operator: append covariant (lower) indices to tensor
no'au'au
mathematical/mekso binary operator: the zero/identity-element/(primitive (-))constant operator; outputs the identity-element of structure A (contextless default: the additive group of integers) regardless of the input value of B (except blank or ill-defined values)
pau'a'u
mekso operator: part of number/projection (one sense); the X2 part of X1
pau'ei
mekso operator: power set - produces the set of all subsets of set A that are of (any) size (that is) b [a nonnegative integer or transfinite/infinite number]
pei'e'a
at-most-3-ary mekso operator: "integer exponent" for X1 divided by X2 in algebraic structure X3
pi'au'e
mekso ternary operator: extract digit from number; X2nd macrodigit/term of number/tuple X1 when X1 is expressed in base/basis X3.
pi'ei
mathematical/mekso binary operator: vector or function inner product over a field; the inner product of A and B over field C
po'i'oi
mekso at-most-3-ary operator: convert to polynomial; X1 (ordered list of algebraic structure (probably field) elements) forms the (ordered list of) coefficients of a polynomial/Laurent-like series with respect to indeterminate X2 under ordering rule X3 (default for finite list: the first entry is the coefficient of the highest-degree term and each subsequent entry is the next lesser-degree coefficient via counting by ones and wherein the last entry is the constant term)
ra'i'e
ternary mekso/mathematical operator: radical; for input (x,y,z), it outputs the largest y-th-power-free product of prime divisors of x in structure (ring) z.
rai'i
mekso (2 or 3)-ary operator: maximum/minimum/extreme element; ordered list of extreme elements of the set underlying ordered set/structure X1 in direction X2 of list length X3 (default: 1)
sau'i
mekso n-ary operator: reciprocal of the sum of the reciprocal of each of X1, X2, ..., Xn (for any natural number n); 1/((1/X1) + (1/X.
si'oi'e
n-ary mekso operator: Logistical growth, sigmoid function; \bigg( \frac(X2)(1+e^(-X.
su'i'e
su'i'o
mekso unary or binary operator: ordered inputs (n, b) where n and b are nonnegative integers and b > 1; output is the ultimate digital root of n in base-b.
tai'e'i
mekso unary operator: basic Schlafli symbol composer (defined only on ordered lists)
tai'i'e
mekso unary operator: Kleene star - X1*
te'au'u
mekso ternary operator: Knuth up-arrow notation: a \uparrow \dots \uparrow b of order/with c-2 arrows ("\uparrow") initially, evaluated from right to left; the cth hyperoperator on a by b.
te'i'ai
6-ary mekso/mathematical operator: Heaviside function/step/Theta function of a, of order b, in structure c, using distribution d, within approximated limit e, with value f_b at 0
tei'au
4-ary mekso operator: Taylor expansion/polynomial term; for ordered input (X1, X, output is the X3th Taylor polynomial term of at-least-X3-smooth function X2 which was expanded around point X4 and which is evaluated at point X1, namely (1/(X3!)) × (D^X.
te'o'a
unary mekso operator: natural exponentiation operator exp, where exp(a) = ea \forall a.
te'oi'i
mekso n-ary operator: tensor product/exterior product; letting "¤" denote the tensor product, A1 ¤ A2 ¤...¤ An .
te'oi'oi
terminator, mekso: terminates the listing of an ordered sequence of indices for a tensor
vau'i
mekso n-ary operator: reciprocal of the successive ordered-difference of the reciprocal of each of x1, x; id est output is ((\dots ((x1^-1 - x
vei'u
binary mekso operator: mod(ulus)/remainder; X1 \% X2, \,\,\, X1 (mod(X2)).
vi'oi'au
mekso unary operator: the set of all fixed points of function a
xa'ai
mekso operator: the bth branch of the (possibly multivalued) function a
xa'ei'o
binary mekso operator: Let the inputs X1 and X2 be sets in the same universal set O; then the result of this operator applied to them is X1^c \cup X, where for any A \subseteq O, Ac = O \setminus A.
xa'ei'u
binary mekso operator: Let the inputs X1 and X2 be sets in the same universal set O; then the result of this operator applied to them is X1^c \cap X, where for any A \subseteq O, Ac = O \setminus A.
xau'e'o
mekso convention default specification/definition (explicit)
xau'o'o
mekso convention cancellation
xe'au
mekso clausal referent bracket initializer
xo'ei
unary mekso operator: produces a string of n consecutive "xo'e"'s, treated as digits (concatenated into a single string of digits)
xo'e'o'ei
At-most-unary mekso operator: like {xo'ei} but for selma'o XOhEhOhE, rather than just PA
xoi'u
non-logical connective (mekso set operator): regardless
za'ei
mekso binary operator: right-handed vectorial cross product (ordered input), a×b
zei'i'au
unary mekso operator: (analytically continued) Riemann zeta function zeta(z), for complex-valued input z.
zoi'ai
non-mekso quote/name substitution for ordered collection of prescriptions, descriptions, definitions, etc.
cia'o'e
mekso 4-nary operator: spherical harmonics on colatitudinal/polar angle a and azimuthal/longitudinal angle b of unassociated order c and associated order d.
xua'ai
mekso operator: the bth branch of the (possibly multivalued) function a