Angle
\angleMath symbols, formulas, and scientific writing
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1 · InputType and copy math symbolsPlatform-specific steps, Unicode identity checks, and look-alike warnings.
2 · AuthorWrite and convert LaTeXFractions, matrices, aligned equations, MathML, HTML, and accessible output.
3 · VerifyUse formulas with checked examplesExplicit inputs, step-by-step calculations, outputs, boundaries, and independent checks.
Popular notation
Copy common math symbols
Approaches the Limit
\doteqApproximately Equal To
\approxBecause Symbol
\becauseBetween Relation
\betweenBump Equals
\bumpeqBumpy Equals
\BumpeqCircled Equals
\circledequalCircled Minus
\ominusDegree Sign
^\circDiamond Operator
\diamondDivision Sign
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Formula reference
Common formulas with context
Algebra
Quadratic Formula
x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}Finds the roots of a quadratic equation ax² + bx + c = 0 when a is nonzero.
Open formulaAlgebra
Slope-Intercept Form
y=mx+bExpresses a straight line using its slope and vertical intercept.
Open formulaAlgebra
Distance Formula
d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}Calculates the straight-line distance between two points in a coordinate plane.
Open formulaAlgebra
Arithmetic Sequence Formula
a_n=a_1+(n-1)dFinds the nth term of a sequence with a constant difference.
Open formulaAlgebra
Geometric Sequence Formula
a_n=a_1r^{n-1}Finds the nth term of a sequence with a constant ratio.
Open formulaGeometry
Pythagorean Theorem
a^2+b^2=c^2Relates the side lengths of a right triangle.
Open formulaPrintable references
Math and LaTeX cheat sheets
Printable reference
Common Math Symbols Cheat Sheet
Copy common arithmetic, comparison, calculus, set, logic, and geometry symbols with Unicode and LaTeX forms.
34 reference itemsPrintable reference
Greek Letters for Math and Science
Compare uppercase and lowercase Greek letters with names, Unicode characters, and LaTeX commands.
33 reference itemsPrintable reference
Calculus Symbols Cheat Sheet
Review derivatives, integrals, limits, sums, products, gradients, and related calculus notation.
32 reference itemsPrintable reference
Set Theory and Logic Symbols Cheat Sheet
Copy membership, subset, union, intersection, quantifier, implication, and logical operator symbols.
36 reference itemsPrintable reference
Essential LaTeX Math Commands
Use a compact reference for fractions, roots, operators, relations, Greek letters, matrices, and delimiters.
36 reference itemsPrintable reference
Common Math Formulas Cheat Sheet
Review frequently used algebra, geometry, calculus, probability, statistics, finance, and vector formulas.
25 reference itemsPractical guides
Type symbols in the apps you use
Comparisons
Approximately Equal vs Equal
Know when to use ≈, =, ≡, and other relation symbols.
Read guideTroubleshooting
Equation Copy-and-Paste Troubleshooting
Diagnose broken minus signs, missing fonts, flattened equations, escaped backslashes, and damaged scripts after copying notation.
Read guideFinancial mathematics
How to Calculate Compound Interest
Calculate compound growth from principal, nominal rate, compounding frequency, and time, then distinguish balance from interest earned.
Read guideStatistics
How to Calculate Mean, Median, and Mode
Calculate and compare mean, median, and mode, then choose the measure that matches the distribution and question.
Read guideApplied math
How to Calculate Percentage Change
Calculate percentage increase or decrease from an old value to a new value, with the original value as the reference denominator.
Read guideProbability
How to Calculate Probability
Calculate probability from equally likely outcomes, complements, and conditional information while checking the sample space.
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