- Fraction Calculator
- Matrix Calculator
- Slope Calculator
- Algebra Calculator
- Trigonometry Calculator
- Percentage Calculator
- Probability Calculator
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Euler's Totient Function CalculatorCompute Euler's totient φ(n) — the count of integers from 1 to n coprime to n — using prime factorization. Free, instant, with worked steps.
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Slope-Intercept Form from a Point and SlopeFind the slope-intercept equation y = mx + b from a known slope and one point. Computes the y-intercept b instantly with steps and examples.
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Simplify Exponents CalculatorSimplify exponent expressions using the product, quotient, and power rules. Enter a base and two exponents to get the simplified power and its value.
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Complete the Pattern: Next Number in Sequence CalculatorFind the next number in a sequence. Automatically detects arithmetic or geometric patterns and predicts the next terms using the common difference or ratio.
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Find the Vertex from Standard Form CalculatorFind the vertex (h, k) of a parabola from standard form ax^2 + bx + c. Enter a, b, c to get the turning point and axis of symmetry instantly.
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X-Intercept CalculatorFind the x-intercept of a line from its slope-intercept equation y = mx + b. Set y = 0 and solve x = −b/m with worked steps.
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Factor Out the GCF from a Polynomial CalculatorFactor out the greatest common factor (GCF) from any polynomial. Enter the terms and get the fully factored form with steps. Free and instant.
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3D Vector Cross Product CalculatorCompute the cross product of two 3D vectors a × b instantly. Get each component (x, y, z) plus the magnitude of the resulting perpendicular vector.
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Number Base Converter CalculatorConvert numbers between binary, octal, decimal, and hexadecimal. Free base converter using place value and repeated division with worked steps.
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De Moivre's Theorem CalculatorApply De Moivre's theorem to raise a complex number in polar form (r∠θ) to a power n. Get modulus, angle, and rectangular a+bi form instantly.
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Arithmetic Sequence CalculatorCompute the nth term (aₙ) and the sum (Sₙ) of an arithmetic sequence from the first term, common difference, and term position.
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Original Value Before Percent Change CalculatorFind the original value before a percent increase or decrease. Enter the final value and percent change to reverse-calculate the starting amount instantly.
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Find X and Y Intercepts of a LineFind the x-intercept and y-intercept of a line in standard form Ax + By = C. Enter A, B, and C to get both intercepts and the slope instantly.
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Nature of Roots CalculatorFind the discriminant of a quadratic equation and determine the nature of its roots — two real, one repeated, or two complex conjugate roots.
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Slope-Intercept from Standard Form CalculatorConvert a linear equation Ax + By = C into slope-intercept form y = mx + b. Instantly find the slope m = -A/B and y-intercept b = C/B.
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Equivalent Ratios CalculatorGenerate equivalent ratios by scaling a:b with a multiplier, and check if two ratios a:b and c:d are equal using cross multiplication.
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X and Y Intercepts of a Line CalculatorFind the x-intercept and y-intercept of a line from its equation ax + by + c = 0. Enter coefficients a, b, c to get both intercepts instantly.
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Percent Grade (Slope) CalculatorCalculate percent grade and slope from two points. Enter X/Y coordinates to get rise/run, slope ratio, grade percentage, and angle of incline.
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Solve Quadratic by Factoring CalculatorSolve any quadratic equation ax²+bx+c=0 by factoring. Get both roots, the discriminant, and step-by-step factor logic instantly.
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Part of a Whole CalculatorFind the part, whole, or percent in any part-of-a-whole problem. Solve part = percent/100 × whole instantly with this free percentage ratio calculator.
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Percent Proportion CalculatorSolve percent word problems with the proportion part/whole = percent/100. Find the missing part, whole, or percent instantly with full steps.
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Markup & Markdown CalculatorCalculate the final price after a percent markup or markdown. Enter an original price and percentage to see the new price and the dollar change instantly.
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Evaluate an Algebraic Expression CalculatorEvaluate the algebraic expression a·x² + b·x + c·y + d by substituting your values for x and y. See each term and the simplified result instantly.
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Solve for x: Variables on Both Sides CalculatorSolve linear equations of the form ax + b = cx + d. Enter the coefficients and constants to find x instantly, with full steps shown.
