nx_eqparse_lib.nx

nx_eqparse_lib.nx -- READ AN EQUATION A PERSON ACTUALLY TYPED, AND NORMALISE IT. WHY THIS EXISTS (2026-09-03, and the operator is the reason). The /math surface shipped as a page whose formulas were typeset at PUBLISH time and whose worked solutions were three hardcoded equations. The operator's response was exact: "/math is just static output how does that match what i asked for". It did not. A visitor could not type anything, and a page that demonstrates a capability is not the same artifact as a page that PROVIDES it. The solver existed (nx_calc_solve), the worked steps existed (nx_solve_steps_lib), the typesetter existed (nx_mathml_lib). The missing rung between a human and all three was this: turning the text "3x+4=19" into coefficients. That is the whole gap, and it is why the page could only ever be a brochure. SCOPE, DECLARED: polynomials in a single variable x up to degree two, integer coefficients, both sides of one equals sign, with implicit coefficients (x means 1x), unary signs, and ^2 for the square. It does NOT do parentheses, division, other variables, or decimals. Anything outside that is REFUSED BY NAME so a visitor is told what was not understood rather than handed a confident answer to a different question. license_tier: ORIGINAL