Partial Differential Calculator
Partial differential calculator works out Derivative and Notation from Expression f(x), Differentiate with respect to and Order of the derivative. The default figures on this page give derivative of 2 * x * y; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
3 steps
- f(x) = y * x^2 + y^3
- d/dx = 2 * x * y
- y held constant while differentiating with respect to x.
Its 5 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
3 sources
What the partial differential calculator calculates
Differentiates an expression symbolically with the power, product, quotient and chain rules, evaluates the derivative at a point, and builds the difference quotient or the linear approximation.
How to use this partial differential calculator
Enter Expression f(x), Differentiate with respect to, Order of the derivative and Evaluate at (optional). Derivative updates as you type. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Derivative, Notation and Derivative at the point.
The method follows OpenStax, Calculus Volume 1, chapter 3 (Derivatives): the power, product, quotient and chain rules, OpenStax, Calculus Volume 1, section 4.2: Linear approximations and differentials and NIST Digital Library of Mathematical Functions, chapter 4: Elementary Functions (derivative table).
What you can compare
Change one input at a time to see how it affects Derivative, Notation and Derivative at the point. The inputs you can vary are Expression f(x), Differentiate with respect to, Order of the derivative, Evaluate at (optional) and Values of the other variables.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
How to calculate partial differentiation?
Differentiates an expression symbolically with the power, product, quotient and chain rules, evaluates the derivative at a point, and builds the difference quotient or the linear approximation. Open “How this is worked out” beside the result to see each step for your own figures.
What is the formula for a partial differential equation?
On the figures this page opens with — evaluate at (optional) 2 — the derivative is 2 * x * y. No single number fits everyone: change any figure above and the answer updates as you type, with each step of the arithmetic beside it.
How do I solve a partial differential equation?
It needs Expression f(x), Differentiate with respect to, Order of the derivative, Evaluate at (optional) and Values of the other variables. Nothing else is required, and the figures stay in your browser.
Can TI-89 do partial derivatives?
Differentiates an expression symbolically with the power, product, quotient and chain rules, evaluates the derivative at a point, and builds the difference quotient or the linear approximation. On the figures this page opens with — evaluate at (optional) 2 — the derivative is 2 * x * y. Put your own figures in their place and the working updates beside the result.
What information do I need for the partial differential calculator?
You need Expression f(x), Differentiate with respect to, Order of the derivative, Evaluate at (optional) and Values of the other variables. The page opens with default figures that give derivative of 2 * x * y, so you can see the scale before entering your own.
What does this partial differential calculator show?
It shows Derivative, Notation, Derivative at the point, f at the point, Tangent line / linearisation and Linear approximation, with the working and any warnings for your entries.