🧮Math Tools (38)

Solve quadratic equations of the form ax² + bx + c = 0.

A scientific calculator with trigonometric and logarithmic functions.

Calculate mean, variance and standard deviation from a data set.

Add, subtract, multiply or divide fractions.

Calculate percentages instantly.

Simplify a ratio to its lowest terms and see its decimal equivalent.

Find the least common multiple (and greatest common divisor) of a list of numbers.

Check if a number is prime and find its prime factorization.

Calculate the mean, median, mode and range of a data set.

Calculate the probability of one or two independent events.

Calculate mean, median, mode, standard deviation, quartiles and more from a data set.

Add, subtract, multiply, transpose or find the determinant of 2x2 and 3x3 matrices.

Find the greatest common factor of two or more numbers.

Break a number down into its prime factors, shown in exponent form.

Calculate the number of ways to arrange r items chosen from n, where order matters.

Calculate the number of ways to choose r items from n, where order doesn't matter.

Calculate binomial probability for exactly k successes, or k or fewer, across n trials.

Calculate a base raised to any exponent, including negative and fractional exponents.

Calculate the logarithm of a number to any base, including common and natural log.

Convert between standard decimal notation and scientific notation.

Calculate percent error between a measured value and an accepted (true) value.

Calculate the symmetric percentage difference between two values.

Calculate the average (mean) of a list of numbers.

Calculate the median (middle value) of a list of numbers.

Calculate a triangle's area, perimeter and angles from its three side lengths.

Calculate a circle's diameter, circumference and area from its radius.

Calculate the straight-line distance and midpoint between two coordinate points.

Calculate the nth root of a number, including square roots and cube roots.

Calculate the slope, y-intercept and equation of a line through two points.

Calculate a z-score and percentile from a value, mean and standard deviation.

Calculate a confidence interval and margin of error from a sample mean and standard deviation.

Find the nth term and sum of an arithmetic or geometric sequence.

List all the factors (divisors) of a whole number.

Calculate the survey sample size needed for a target confidence level and margin of error.

Calculate the remaining amount of a substance after a period of exponential decay.

Add, subtract, multiply, divide or raise to a power very large whole numbers with full precision.

Round a number to a chosen number of decimal places, up, down or to the nearest value.

Convert numbers to Roman numerals, or Roman numerals back to numbers.