Calculators

Loan early repayment calculator online free. See how extra monthly payments or a lump sum cut your payoff time and total interest, compared month by month, in your browser.

Angle of complex number calculator online free. Find the argument in degrees and radians and the modulus of a + bi, with the quadrant steps shown, in your browser.

Cosh calculator online free. Calculate cosh(x) from the exponential definition, with sinh(x), tanh(x) and the identity check shown step by step, in your browser.

Euler phi function calculator online free. Compute Euler’s totient phi(n) from the prime factorisation, with the product formula shown step by step, in your browser.

Fibonacci series calculator online free. Generate the first N Fibonacci numbers with every addition step shown, or find a single term F(k) exactly, in your browser.

Linear equations in two variables calculator online free. Solve a pair a x + b y = c with determinants, all steps shown, plus honest no-solution and infinite-solution verdicts.

Mid point rule calculator online free. Approximate a definite integral numerically with the midpoint rule and see the full table of midpoints and values.

Polynomial root calculator online free. Find roots of polynomials up to degree 4: exact formulas for degrees 1 and 2, labelled numeric roots for 3 and 4.

Partial fraction calculator with steps online free. Decompose proper fractions with distinct linear factors by the cover-up method, every substitution shown.

LCM of fractions calculator online free. Find the least common multiple of fractions with the numerator and denominator rule, every step shown, in your browser.

Greater than less than fractions calculator online free. Compare two fractions with cross-multiplication shown, decimals, and the exact difference, in your browser.

Dividing decimals calculator online free. Divide decimals with the long-division steps shown and the quotient to your chosen precision, in your browser.