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LaTeX, KaTeX and MathJax — right inside your Markdown notes.

Write equations in familiar LaTeX syntax and see them rendered as you work. From quick inline notation to multi-line formulas and mathematical symbols, your notes stay both readable and portable.

Apple Silicon v0.3 Intel Mac v0.3

Arithmetic & spacing

Use braces, superscripts, subscripts, and spacing commands to compose expressions naturally.
In split view, whatever you write in the raw editor (left side) is rendered instantly on the visual editor (right side).

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX arithmetic, grouping, superscripts, subscripts, and spacing examples in split view.

Fractions & roots

Fractions, square roots, binomial coefficients, and nested expressions.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX fractions, roots, binomial coefficients, and a continued fraction in split view.

Greek letters & symbols

Write Greek letters, set notation, operators, and common symbols with the same familiar commands used in scientific documents.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing Greek letters and common mathematical symbols rendered from LaTeX in split view.

Relations, sets & logic

Write comparisons, set operations, number systems, implications, and quantifiers with familiar LaTeX commands.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX relations, set notation, and logical expressions rendered in split view.

Delimiters & cases

Use automatic delimiters for fractions, inner products, and piecewise definitions.
Brackets and braces adapt cleanly to even the most detailed expressions.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX delimiters, inner products, and piecewise functions rendered in split view.

Sums, products & limits

From finite sums to infinite series, products, and limits, Notes Plus lays out operators with their bounds exactly where they belong.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX sums, products, and limits rendered in split view.

Calculus

Document derivatives, partial derivatives, definite and improper integrals, vector calculus.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX derivatives, integrals, and vector calculus notation rendered in split view.

Matrices, vectors & determinants

Build vectors, matrices, determinants, transformations, and inverses with clear notation that stays structured from source to preview.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX vectors, matrices, determinants, transformations, and matrix inverses in split view.

Aligned derivations

Wrap each derivation in \begin{aligned} and \end{aligned}, place & before the relation you want to align, and end each row with \\. This turns a calculation into a sequence readers can follow at a glance.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing aligned LaTeX derivations for binomial expansion and solving a linear equation in split view.

Functions & operators

Render trigonometric functions, logarithms, exponentials, greatest common divisors, and custom operators with the correct mathematical spacing.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX functions and operators including trigonometry, logarithms, greatest common divisors, and arg max in split view.

Probability & statistics

Capture conditional probability, expectation, variance, distributions, and descriptive statistics in notation that reads naturally.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX probability and statistics equations including conditional probability, expectation, variance, and the normal distribution in split view.

Geometry & trigonometry

Capture the cosine rule, sine rule, and familiar area and volume formulas with notation that stays crisp in class notes, proofs, and problem sets.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX geometry and trigonometry formulas including the cosine rule, sine rule, area, and volume in split view.

Complex numbers

Write Cartesian, polar, exponential, conjugate, and magnitude notation without breaking the thread of your derivation.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX complex number notation including Euler's formula, conjugates, and magnitudes in split view.

Physics

Combine mechanics, energy, waves, quantum mechanics, and electromagnetism in one notation system built for scientific thinking.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX physics equations for mechanics, energy, the Schrödinger equation, and Maxwell's equations in split view.

Decorations, fonts & color

Use accents, font styles, color, and boxed expressions to clarify a result, distinguish a variable, or draw attention to the next idea.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX decorations, math fonts, color, and a boxed quadratic formula in split view.

Text inside equations

Add plain-language context directly inside an expression, whether you are naming a condition, counting terms, or annotating the part that matters.

_{Download Markdown source file (also contained in demo notes in the app itself).}

Notes Plus showing LaTeX text commands and annotated braces inside equations in split view.

Fourier transform

Use aligned notation for a Fourier transform and its inverse, making a compact reference for signal processing, analysis, and physics notes.

_{Download the Markdown source (it's also contained in the demo notes in the app itself).}

Notes Plus showing a LaTeX Fourier transform and inverse Fourier transform in an aligned environment.

Quadratic formula

The quadratic formula gives the roots of any second-degree polynomial, ax² + bx + c = 0, in terms of its coefficients. Its discriminant, b² − 4ac, determines the number and type of solutions.

_{Download the Markdown source (it's also contained in the demo notes in the app itself).}

Notes Plus showing a step-by-step LaTeX derivation of the quadratic formula in split view.