Sam Gorman

Calculate percent error, signed percent error, absolute error, and relative error from accepted and experimental values.

Generate random integers or decimals with repeats, sorting, endpoint rules, and optional seeded reproducible results.

Solve percent of a number, what percent, whole from part, percent change, and percentage point change in one calculator.

Convert decimals, E notation, and scientific notation, or multiply and divide values with clear coefficient and exponent steps.

Compute matrix multiplication, inverse, determinant, RREF, rank, and solve Ax=b with exact fractions or decimals.

Round numbers by decimal places, significant figures, place value, or nearest multiple with a clear rule explainer.

Find positive or negative factors, factor pairs, prime factorization, and divisor counts for any whole number.

Find the GCF of 2 or more whole numbers, see the steps, and simplify a fraction from the same result.

Find the LCM of 2 or more integers, see steps, prime factors, GCF, and clear notes for zeros, negatives, and duplicates.

Find square, cube, and n-th roots with decimal answers, exact simplified form, and clear real-number checks for negative inputs.