Look up typical room-temperature mechanical and thermal properties for a common engineering material (density, Young's modulus, yield and ultimate strength, thermal conductivity, CTE). Accepts names or shorthand like 'aluminum', '6061', 'Ti-6Al-4V', '304'.

Compute max deflection, max bending moment, and max bending stress for a beam under one of four standard loadings. Optionally returns a factor of safety against yield. Euler-Bernoulli, linear-elastic, small-deflection theory.

Convert a value between engineering units within the same physical dimension (length, mass, force, pressure/stress, energy, power, area, volume, temperature). Refuses cross-dimension conversions such as force to length.

List every unit symbol the converter supports, grouped by physical dimension.

Fit a least-squares model to paired (x, y) experimental data and return the coefficients, R^2, and a formula string. Use 'power' for dimensionless correlations like Nu = CRe^n (fit in log-log space; x and y must be positive) or 'linear' for y = mx + c.