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        Word: salrixo [jbovlaste]
        Type: fu'ivla
  Gloss Word: derivative in the sense of "mathematical"
  Gloss Word: differintegral in the sense of "brivla"
  Gloss Word: integral in the sense of "mathematical; continuous sum"
  Definition: x1 is the differintegral of x2 with respect to x3 of order x4,
       with differintegration being according to
       definition/specification or of type x5.
       Notes: All integrals are indefinite. Definition of which
       differintegral operator is being used is context-dependent if
       not specified explicitly by x5. Dimensionality of x1 and x2 may
       be similarly specified. Output x1 is a function, not a value
       (that is, it is some $f$ rather than $f(x)$); it must be
       specified/restricted to a value in order to be a value; thus,
       output may be $g'$ but not $g'(a)$ for some $a$; similarly,
       definite integrals and integration constants must be defined
       with additional effort. x2 is likewise a function. If x2 is
       univariate, then x3 defaults to that input/variable; when x2 is
       physical, without context, time will probably usually but not
       necessarily be assumed as the default of x3 (but may be made
       explicit by "temci zei salrixo" or merely "temsalri").
       Positive values of x4 are integrals, negative values are
       derivatives, and zero is identity; at the least, any real value
       may be supplied for x4; x4 has no default value. Useful for
       making lujvo for physics, for specifying career/total/sum
       versus peak/instantaneous value, for distinguishing between
       instantaneous versus average values/quantities, for specifying
       rates, generalized densities (including pressure), "per" for
       smooth quantities, etc. See also: "salri" (synonymous gismu).