- Fraction Calculator
- Matrix Calculator
- Slope Calculator
- Algebra Calculator
- Trigonometry Calculator
- Percentage Calculator
- Probability Calculator
-
3x3 System of Equations CalculatorSolve a 3x3 system of linear equations using Cramer's Rule. Enter coefficients to find x, y, z plus all determinants instantly.
-
Percent of a Number CalculatorCalculate what p% of any number n is instantly. Enter a percentage and a number to find the result using result = (p/100) × n.
-
Percent Change CalculatorCalculate the percent change between two values with the formula (new − old) / old × 100. Get increase or decrease percentage and absolute change instantly.
-
Line of Best Fit CalculatorFind the line of best fit (y = mx + b) using least-squares linear regression. Enter X and Y data to get slope, intercept, correlation r, and R².
-
Axis of Symmetry CalculatorFind the axis of symmetry of a parabola y = ax² + bx + c using x = −b/(2a). Enter a, b, c to get the symmetry line and vertex point instantly.
-
Factorial CalculatorFree factorial calculator. Enter a non-negative integer n and instantly compute n! = 1×2×3×…×n. Fast, accurate, and easy to use online.
-
Area Between Two Curves CalculatorCompute the area between two curves f(x) and g(x) over an interval [a,b] using definite integration of |f−g|. Handles crossings automatically.
-
Sum and Difference of Cubes Factoring CalculatorFactor a³ + b³ and a³ − b³ instantly. Enter a and b to get the linear and trinomial factors plus the numeric value, with worked steps.
-
Geometric Sequence nth Term CalculatorFind the nth term of a geometric sequence using aₙ = a₁·r^(n-1). Enter the first term, common ratio, and position to get the term value and sum.
-
Two-Step Equation CalculatorSolve any two-step linear equation of the form ax + b = c instantly. Enter a, b, and c to find x with clear step-by-step working.
-
Binomial Expansion CalculatorExpand and evaluate (a+b)^n with the binomial theorem. Enter a, b and exponent n to get the numeric value, term count and structure.
-
Y-Intercept CalculatorFind the y-intercept (b) of a line from its slope and one point. Enter m, x₁ and y₁ to get b = y₁ − m·x₁ and the full y = mx + b equation.
-
Distance = Rate × Time CalculatorSolve d = r × t instantly. Find distance, rate (speed), or travel time from any two known values. Free, fast, and works with any consistent units.
-
Exponential Growth CalculatorCalculate exponential growth with N(t)=N₀·(1+r)^t. Enter an initial value, growth rate, and number of periods to find the compounded final value.
-
Vertex of a Parabola CalculatorFind the vertex (h, k) of a parabola y = ax² + bx + c instantly. Computes x = -b/(2a) and the vertex y-value, plus the vertex form.
-
2x2 Matrix Inverse CalculatorCompute the inverse of a 2x2 matrix instantly. Enter a, b, c, d to get the determinant and each element of A⁻¹, with a singular-matrix check.
-
2x2 Eigenvalue CalculatorFind the eigenvalues of any 2x2 matrix instantly. Handles real and complex conjugate eigenvalues using the trace and determinant formula.
-
Factor a Trinomial CalculatorFactor a quadratic trinomial ax²+bx+c into a(x−r₁)(x−r₂). Enter a, b, c to get the roots, discriminant, and factored form instantly.
-
Domain and Range CalculatorFind the domain and range of linear, quadratic, rational, and square root functions instantly. Enter coefficients and get exact interval notation.
-
3×3 System of Equations CalculatorSolve a 3×3 system of linear equations in x, y, z using Cramer's rule. Enter all 12 coefficients and get the exact solution and determinant instantly.
-
Percent Error CalculatorFree percent error calculator. Enter your measured and actual values to find percent error and absolute error with the standard formula instantly.
-
2×2 Matrix Determinant CalculatorCompute the determinant of a 2×2 matrix instantly using det = ad − bc. Enter the four entries a, b, c, d and get the result with steps.
-
Polynomial Multiplication CalculatorMultiply two polynomials instantly. Enter coefficients to get the expanded product polynomial, its coefficient list, and resulting degree.
-
Slope From Equation CalculatorFind the slope of a line from its standard-form equation Ax + By = C. Enter A, B and C to get slope m = -A/B and the y-intercept instantly.
