LaTeX Math Editor
Free online LaTeX formula editor, real-time preview
What is LaTeX?
LaTeX is a typesetting system widely used in academia for mathematical and scientific documents. This tool focuses on math equations, allowing you to write LaTeX expressions and see them rendered in real time. Common uses include writing formulas for papers, presentations, and educational content.
How to Write LaTeX Equations
Type your LaTeX expression in the input area. The rendered equation appears in real time. Use the common symbols panel for quick insertion of Greek letters, operators, and structures. Examples: \frac{a}{b} for fractions, \sqrt{x} for square roots, \sum_{i=0}^{n} for summation.
▶How do I write a fraction in LaTeX?
Use \frac{numerator}{denominator}. For example, \frac{1}{2} displays as 1/2 with a horizontal fraction bar.
▶How do I write Greek letters?
Use a backslash followed by the letter name: \alpha, \beta, \gamma, \pi, \theta, \sigma. Capitalize the first letter for uppercase: \Sigma.
▶Can I use subscripts and superscripts?
Use _ for subscripts and ^ for superscripts. For example, x_i produces x with subscript i, and x^2 produces x squared. Wrap multi-character groups in braces: x_{10} or e^{-kt}.