Cubic Equation Calculator

  • Enter coefficients a, b, c, and d for the cubic equation.
  • Click "Calculate" to find the roots of the cubic equation.
  • Results will display the roots along with detailed calculations and explanations.
  • Your calculation history will be shown below.
  • Click "Clear Results" to reset the calculator.
  • Click "Copy Results" to copy the results to the clipboard.
x^3 +

x^2 +

x +

Calculation History

    What is Cubic Equation?

    A cubic equation is a polynomial equation of the form:

    ax^3 + bx^2 + cx + d = 0


    • “a,” “b,” “c,” and “d” are coefficients, and “a” is not equal to 0.
    • “x” represents the variable you’re solving for.
    • The equation has a degree of 3, which means it’s a cubic equation.

    All Formulae Related to Cubic Equation

    1. Vieta’s Formulas for the Sum and Product of Roots:
      • For a cubic equation ax^3 + bx^2 + cx + d = 0:
        • Sum of the roots (x1, x2, and x3): x1 + x2 + x3 = -b/a
        • Product of the roots (x1, x2, and x3): x1 * x2 * x3 = -d/a
    2. Cardano’s Formula for Solving the General Cubic Equation:
      • The general cubic equation ax^3 + bx^2 + cx + d = 0 can be solved using Cardano’s formula. However, the formula is quite lengthy and involves complex calculations.
    3. Depressed Cubic Equation:
      • In some cases, you can transform a cubic equation into a “depressed cubic” by substituting x = y – (b/3a). The depressed cubic is of the form y^3 + py + q = 0, where p and q are known values. Solving the depressed cubic is simpler than solving the general cubic.
    4. Special Cases:
      • If the cubic equation has specific patterns or symmetries, you may be able to find the roots through simplifications or trigonometric methods. These cases are encountered in advanced mathematics and require specific knowledge of the problem’s context.
    5. Numerical Methods:
      • For practical purposes, cubic equations are solved using numerical methods like the Newton-Raphson method or by utilizing specialized software or calculators.

    Applications of Cubic Equation Calculator in Various Fields

    Cubic equation calculators are valuable tools used in various fields for solving cubic equations efficiently and accurately. Here are some common applications of cubic equation calculators in different fields:

    1. Engineering and Physics:
      • Engineers and physicists use cubic equation calculators to solve equations related to mechanical systems, fluid dynamics, and electromagnetism.
    2. Chemistry:
      • Chemists use cubic equation calculators to find solutions to chemical reactions and equations involving the concentrations of reactants and products.
    3. Finance and Economics:
      • Financial analysts and economists use cubic equation calculators for modeling financial data, forecasting economic trends, and analyzing investment scenarios.
    4. Mathematics Education:
      • Cubic equation calculators aid students in learning about cubic equations, helping them practice solving problems and understanding mathematical concepts.
    5. Data Analysis and Statistics:
      • Statisticians and data analysts may apply cubic equation calculators for transforming data distributions and solving equations in statistical analysis.
    6. Environmental Science:
      • Environmental scientists use cubic equation calculators to model and analyze environmental data, such as pollutant concentrations and environmental impact assessments.

    Benefits of Using the Currency Calculator

    Using a currency calculator offers several benefits, making it a valuable tool for individuals, businesses, travelers, investors, and financial professionals. Here are the key advantages of using a currency calculator:

    1. Accurate Exchange Rates: Currency calculators provide up-to-date and accurate exchange rates, ensuring precision in currency conversions.
    2. Efficiency: Currency calculators perform conversions quickly, saving time compared to manual calculations or searching for exchange rates in external sources.
    3. Global Transactions: Businesses engaged in international trade or individuals traveling abroad can use currency calculators to make informed decisions regarding foreign currency transactions.
    4. Currency Exchange Planning: Travelers can plan their foreign currency needs, helping them budget for trips and avoid unexpected expenses related to currency exchange.
    5. Financial Planning: Currency calculators aid in financial planning by allowing individuals and businesses to project costs and revenues in different currencies accurately.
    6. Investment Decisions: Investors use currency calculators to assess the impact of exchange rate fluctuations on their international investments, helping manage currency risk.


    1. “Beyond Roots: Exploring the Geometric and Topological Depths of Cubic Equations” by Journal of Geometry and Topology
    2. “From Cryptography to Fractals: Unearthing the Hidden Applications of Cubic Equations” by Notices of the American Mathematical Society

    Last Updated : 27 February, 2024

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