📐 Advanced Calculus · Comprehensive 2026 Reference

Calculus Formula Sheet:
From Limits to Series

The definitive guide for AP Calculus AB/BC and Engineering Math. Search over 100+ identities, derivatives, and integration rules. Accurate, printable, and completely free.

Складна математична дошка з формулами диференціального числення

Limits & Continuity

L’Hôpital’s Rule Core
limₓ→ₐ f(x)/g(x) = limₓ→ₐ f'(x)/g'(x)

Applies when limits result in 0/0 or ∞/∞ indeterminate forms.

Squeeze/Trig Theorem Core
limₓ→₀ sin(x)/x = 1

Essential for deriving derivatives of sine and cosine.

Euler’s Number Advanced
limₙ→∞ (1 + 1/n)ⁿ = e

The definition of the base of the natural logarithm (e ≈ 2.718).

Differentiation Rules

Chain Rule Core
d/dx [f(g(x))] = f'(g(x)) · g'(x)

Crucial for differentiating functions within functions.

Product Rule Core
(uv)’ = u’v + uv’

Method for the derivative of a product of two functions.

Derivative of arctan(x) Advanced
d/dx [tan⁻¹(x)] = 1 / (1 + x²)

Common in engineering and integration by substitution.

Natural Exponential Core
d/dx [eˣ] = eˣ

The unique function that is its own derivative.

Complex derivative giving you trouble?

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Наукова візуалізація інтегрування та площі під кривою

Integration Techniques

Integration by Parts Core
∫ u dv = uv – ∫ v du

The integral equivalent of the product rule for derivatives.

Trig Substitution Advanced
√(a²−x²) → x = a sin(θ)

Used to solve integrals involving square roots of quadratic forms.

Partial Fraction Form Advanced
∫ dx / (x−a)(x−b)

Breaking complex rational functions into simpler fractions.

Power Series & Taylor

Taylor Series Advanced
Σ [f⁽ⁿ⁾(a)/n!] · (x−a)ⁿ

Approximating functions as infinite polynomials centered at a.

Sine Expansion Advanced
x – x³/3! + x⁵/5! – …

The Maclaurin series expansion for the sine function.

The Ultimate Calculus Cheat Sheet for Students

Calculus is the study of continuous change. Whether you are preparing for the AP Calculus exam or studying engineering at university, having a reliable source for Differentiation and Integration formulas is key to your success. Our comprehensive reference sheet is updated for 2026 to include everything from foundational limits to advanced Taylor series expansions.

How to Use This Reference Successfully

Don’t just memorize — understand the relationships. For example, every integration rule on this page is effectively the “inverse” of a differentiation rule. When you see the derivative of ln(x) is 1/x, you immediately know that the integral of 1/x must involve ln(x).

  • Limits: Master L’Hôpital’s Rule early. It is the most powerful tool for solving indeterminate forms on exams.
  • Derivatives: Focus on the Chain Rule. Over 70% of differentiation errors in exams come from forgetting to multiply by the inner function’s derivative.
  • Integrals: Memorize the common trigonometric integrals. While substitution (U-Sub) is common, recognizing the form of arctan or arcsin can save you minutes during a timed test.

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While this cheat sheet provides the formulas, our Math Camera Solver provides the context. Most apps like Photomath show you a final answer but lock the steps behind a $9.99/mo paywall. We believe education should be free. If you find a problem on your homework that doesn’t match one of these formulas, take a photo and let our AI explain the derivation to you — for free.

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