Hints

Hints provide suggested results for mathematical expressions while you work. They can compute values, simplify expressions, solve equations, evaluate functions, work with units, and perform symbolic operations directly inside the document. Hints appear automatically as you type and never modify the document unless you explicitly accept them.

The goal is to keep calculations fast and interactive without breaking the writing flow. Hints are optional and non-destructive. You can ignore them completely and continue writing normally, or use them as lightweight computational assistance while keeping the document fully editable and readable.

Generating a hint

To generate a hint:

Type a mathematical expression
End the line with =
Wait for the preview to appear
Press Tab to insert the result

If you continue typing instead of pressing Tab, the hint disappears automatically.

How hints behave

Hints are suggestions

Hints never modify the document automatically.

Action	Result
Press Tab	Insert the suggested result
Continue typing	Ignore the hint
Delete `=`	Remove the hint

Hints use previous lines

Hints can reference values, functions, and equations defined earlier in the document.

Example:

a=5

a+2=

Preview:

If a definition changes later, dependent results update automatically when recomputed.

Hints resolve chains of definitions

Definitions can depend on earlier definitions.

Example:

a=5

b=a+10

2*b=

Preview:

Horizontal rules separate contexts

A horizontal rule creates a new calculation scope. Variables and definitions above the rule are ignored below it. Just type three dashes, like this

Example:

---

This is useful for separating unrelated problems inside the same document.

Units propagate automatically

Hints preserve and simplify compatible units.

Example:

m=10

a=9.8

F=m*a=

Preview:

Derived SI units such as N, J, and Pa are produced automatically when dimensions match.

Common operations

Computing values

Input	Result
2+3=	5
1/3+1/6=	1/2
2=	1024

Simplifying, expanding, and factoring

Hints can simplify algebraic expressions automatically.

Input	Result
sin2(x)+cos2(x)=	1
(a+b)2=	a2+b2+2ab
(x+1)(x-1)(x+2)=	-2+x3-x+2*x2
x2-7*x+12=	(-4+x)*(-3+x)
x3-1=	(-1+x)*(1+x+x2)

Partial fraction decomposition

Input	Result
(2s+3)/(s2-3s+2)=	-51/(-1+s)+7/(-2+s)

Solving equations

Write an equation first, then request the solution on the next line.

Example:

x2-4=0

Preview:

Derivatives

Hints support standard derivative notation.

Input	Result
d(x2)/d(x)=	2*x
d(sin(x))/d(x)=	cos(x)

Partial derivatives work as well.

Input	Result
∂(ƒ)/∂(x)=	0

Integrals

Hints support indefinite and definite integrals.

Input	Result
(∫_^)(x*d(x))=	(x2)/2
(∫_0^π)(sin(x)*d(x))=	2

Hints can also preserve units during integration.

Limits

Input	Result
(lim_x→0)(sin(x)/x)=	1
(lim_x→∞)(1+1/x)x=	1

Summations and products

Input	Result
(∑_i=1^n)(i2)=	(n2)/2+(n3)/3+n/6
(∑_i=1^∞)(1/(i2))=	(π2)/6
(∏_i=1^n)(i)=	n!

Matrices

Hints can evaluate common matrix operations.

Input	Result
[[1,2],[3,4]](-1)=	[[-2,1],[3/2,-1/2]]
det([[1,2],[3,4]])=	-2

Statistics

Hints support common statistical operations.

Input	Result
AM(1,2,3,4,5)=	3
med(34,22,15,25,10)=	22
mode(19,19,34,3,10,22)=	19
GM(4,8,16)=	8
HM(2,5,10)=	3.75

Supported operations include arithmetic mean, geometric mean, harmonic mean, median, mode, variance, and standard deviation.

Special functions

Input	Result
Γ(5)=	24
Γ(1/2)=	√(,π)
ζ(2)=	(π2)/6
𝜙(100)=	40

Number theory operations

Input	Result
gcd(462,1071)=	21
lcm(4,6)=	12
10!=	3628800

Recognized notation

The following patterns trigger specific hint behavior.

Notation	Meaning
`=` at end of line	Generate a hint
`x=` on its own line	Solve for `x`
`(x,y)=`	Solve a system
`f(x)=...`	Define a function
`f(3)`	Evaluate a function
`d(...)/dx`, `∂f/∂x`	Derivatives
`∫ ... dx`	Integrals
`lim_{x→a}`	Limits
`Σ`, `∏`	Summations and products
`A^T`, `A^{-1}`	Matrix transpose and inverse
`∪`, `∩`	Set operations
`---`	Reset calculation scope

Why a hint might not appear

A hint may not appear if:

the expression is incomplete
the line does not end with =
required definitions are missing
units are incompatible
the math backend is still loading

In most cases, continuing to edit the expression resolves the issue.

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