Author name: digital2spring@gmail.com

If you want to understand machine learning, you have to make peace with statistics first. This guide to statistics for […]

Cosine Similarity Calculator cos θ Measure how similar two vectors are by the angle between them — the metric behind

Limit Calculator lim Find the limit of a function as x approaches a value (or infinity), from either side. Function

Normal Distribution Calculator Gaussian Find probabilities and the density for a normal (Gaussian) distribution. x Mean (μ) Std dev (σ)

Poisson Distribution Calculator P(X=k) Compute Poisson probabilities from the rate λ and number of events k. Rate λ (mean) Events

Partial Derivative Calculator ∂/∂x Differentiate a multivariable function with respect to one variable, holding the others constant. Function f(x, y,

Confidence Interval Calculator mean Compute a confidence interval for a mean from the sample mean, standard deviation and size. Sample

Linear Regression Calculator y = a + bx Fit a line of best fit by least squares: slope, intercept, R²

Variance Calculator s² & σ² Find the sample and population variance of any data set, with the standard deviation too.

Probability Calculator events Find the probability of a single event, or combine two events (AND, OR, neither). Single event Two