xby-calculator

Large language models frequently stumble on precise arithmetic, function evaluation, and formula application during conversation. xby-calculator plugs into DeepSeek Harness via the Model Context Protocol to give the model a dedicated external calculator it can call on demand, so numerical results come from verified tool execution rather than probabilistic reasoning.

The plugin spans 13 specialized math modules: basic arithmetic, roots, trigonometric and logarithmic functions, descriptive statistics, combinatorics and number theory (factorials, binomial coefficients, Euler's totient, prime factorization), complex number algebra and polar conversion, matrix operations including determinant and inverse, numerical methods such as trapezoidal integration and Newton's root-finding, finance calculations covering compound interest, annuities, loan payments, NPV, and IRR, seven categories of unit conversion, and geometry from circles and ellipses to spheres and regular polygons. Every operation is exposed as a single-purpose function, so the model simply calls it and receives an exact value.

Students verifying trigonometry or combinatorics homework, researchers reproducing matrix-heavy computations, engineers handling unit and geometry conversions, and analysts crunching loan amortizations or investment returns can all lean on xby-calculator as a trustworthy calculation backend, freeing their mental bandwidth for interpretation and next-step reasoning instead of manual double-checking.