Math & Numbers
Calculate the arithmetic mean of a numeric dataset and review the main supporting statistics
mean-calculatorMath & Numbers
Find the median of a dataset, inspect the sorted sequence, and optionally review quartiles and interquartile range
median-calculatorMath & Numbers
Compute the inverse of a square matrix using Gauss-Jordan elimination and report when inversion is impossible
matrix-inverse-calculatorMath & Numbers
Multiply two matrices and return the product with dimension checks and optional step explanations
matrix-multiplication-calculatorMath & Numbers
Perform core matrix operations including addition, multiplication, inverse, determinant, trace, and rank
matrix-calculatorMath & Numbers
Solve common percentage questions including percentage of a total, value from a percentage, and percentage change
math-percentage-calculatorMath & Numbers
Convert miles to kilometers with configurable decimal precision
miles-to-kmMath & Numbers
Convert meters to feet with configurable decimal precision
meter-to-feetDocument Tools
Convert a Markdown slide deck (Remark/Marp style) into a PDF
md-slide-deck-to-pdfMath & Numbers
Calculate markup, selling price, and profit based on cost and markup percentage
markup-calculatorAstronomy
Predict and display information about major annual meteor showers
meteor-showerData Visualization
Generate correlation and comparison matrix charts with color intensity mapping and grid layout
matrix-chart-generator