Sympy-exact witness of the Δ¹⁷O identity on the terrestrial fractionation line. Setup: Δ¹⁷O = δ¹⁷O − (52/100)·δ¹⁸O (Rational 52/100 = 13/25 preserves exact-rational arithmetic). Substituting the TFL relation δ¹⁷O = (52/100)·δ¹⁸O gives…
Sympy-exact witness of the Δ¹⁷O identity on the terrestrial fractionation line. Setup: Δ¹⁷O = δ¹⁷O − (52/100)·δ¹⁸O (Rational 52/100 = 13/25 preserves exact-rational arithmetic). Substituting the TFL relation δ¹⁷O = (52/100)·δ¹⁸O gives…