Calculate population and sample standard deviation, variance, and more for a dataset.

Calculate mean, median, mode, range and standard deviation for a set of numbers.

Calculate the Z-score of a data point and find the corresponding percentile rank.

Calculate the confidence interval for a sample mean using sample size, standard deviation

Convert between compass course and true course by applying magnetic variation and compass

Calculate gyro error, compass error, true course, magnetic course, and compass course from