Student & maths tools
Calculators that show their working, for coursework and revision.
- Scientific Expression Calculator Evaluate expressions such as 2sin(30) + sqrt(16)/3 with trig, logs, powers and factorials, in degrees or radians, without using eval.
- Quadratic Equation Solver Solve ax² + bx + c = 0 with full working: the formula, substituted values, discriminant and real or complex roots, step by step.
- Percentage Calculator Work out X% of Y, what percent one number is of another, percentage increase or decrease, and add or subtract a percentage, with the working shown.
- GPA & CGPA Calculator (4.0 scale) Calculate semester GPA and updated CGPA from letter grades and credit hours on the 4.0 scale used by FAST NUCES and many other universities.
- Matrix Calculator Compute the determinant, inverse, transpose or product of matrices up to 8 × 8 using partial pivoting for numerical stability.
- System of Linear Equations Solver Solve 2 to 8 simultaneous linear equations by entering the augmented matrix. Detects singular systems with no unique solution.
- Descriptive Statistics Calculator Get mean, median, mode, range, quartiles, variance and standard deviation (sample and population) for a list of numbers.
- Prime Factorisation & Primality Checker Check whether a whole number is prime and break it into prime factors in exponent form, with exact BigInt arithmetic for very large numbers.
- GCD & LCM Calculator Find the greatest common divisor and least common multiple of two or more whole numbers, with the Euclidean algorithm steps for the first pair.
- Fraction Calculator Add, subtract, multiply and divide fractions, mixed numbers and decimals, with results simplified to lowest terms and shown as mixed numbers.
- Definite Integral Calculator (Numerical) Numerically evaluate a definite integral of f(x) between two limits using Simpson’s rule, with the formula, step size and a trapezoidal cross check.
- Permutation & Combination Calculator Calculate nPr and nCr (combinations) exactly for large n using BigInt, plus factorials, with the formulas and substituted values shown.