Math Expression Evaluator

Comprehensive mathematical operations API with 6 specialized endpoints: calculate (basic arithmetic), solve-equation (linear equation solver), statistics (mean, median, mode, std dev, variance, quartiles), trigonometry (sin, cos, tan, asin, acos, atan with degrees/radians), financial (simple/compound interest, NPV, IRR, FV, PV), and conversion (length, weight, temperature, volume, area). Supports multiple output formats (JSON, text, CSV). Essential for educational apps, scientific calculators, financial tools, data analysis platforms, and engineering applications.