Other sources confirm that Crux supports not only Nokia devices but also .
Built-in regressions (linear, logarithmic, exponential) with automated R² value outputs.
Crux Calculator is a specialized digital computing engine engineered to handle multi-variable equations, matrix laboratory functions, and structural optimization data. Unlike generic scientific calculators, the Crux framework is built for industry-specific stress testing, load distribution formulas, and advanced geometric calculus.
Crux Calculator v5.5 is :