Linear & Polynomial Regression
Fit linear, quadratic, cubic, exponential, power, and logarithmic models to your data with full statistics, ANOVA table, and an interactive chart.
Statistics & Data AnalysisPCA Explorer
Explore Principal Component Analysis (PCA) interactively — compute eigenvalues, visualise score plots, loading plots, and biplots on example or custom data.
Statistics & Data AnalysisDescriptive Statistics
Compute descriptive statistics for your dataset — mean, median, standard deviation, quartiles, and more.
Statistics & Data Analysist-Test Calculator
Perform one-sample, paired, and two-sample (independent) t-tests with p-values, confidence intervals, and effect size.
Statistics & Data AnalysisDoE Planner
Plan your Design of Experiments — full factorial, fractional factorial, screening, and response surface designs with time estimates.
Statistics & Data AnalysisBuffer Preparation
Prepare laboratory buffer solutions with ease. Calculate required mass from molarity or predict pH using the Henderson-Hasselbalch equation.
BuffersDilution Calculator
Calculate dilutions for mass/volume and molarity units, serial dilutions, with copy-to-clipboard support.
BuffersAngle Converter
Convert between common angle units including degrees, radians, gradians, and revolutions.
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