STNDEV-Calculates the mean, biased and unbiased variance, biased and unbiased standard deviation and standard error for one set of numbers.

PRIME-Determines if number N is a prime number.

TABLE-Table of values of sine and cosine function from 0 to 90.

PERMS-Prints all permutations of N letters.

DIVIDE-A simple exercise in division.

DERIV-Figures an approximation to the derivative.

CONTOURS-Demonstrates the level curves (contours) of a function of two variables.

MAX-Finds the maximum value of a function of an interval.

CHINES-Solves N simultaneous congruences of the form: A*X congru- ent to B (MOD M).

EUCLID-Finds the greatest common divisor of two integers, together with the weighting factors by which the GCD is expressionable as a linear combination.

SIEVE-Demonstrates the sieve method of finding primes.

FRSQRS-Writes positive integers as the sum of 4 squares.

INSCRB-Prints first ten Pythagorian triangles and the radius of the inscribed circle of each.

FACTAP-Computes factorials by Stirling's formula.

EASY02-Lists factors for given number N.

FACTRL-Computes the sum of the first N factorials.

SPHERE-Relationship of surface area, radius and volume of spheres.