diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,48 +1,56 @@
 ![](./misc/banner.png)
 
-A high-precision partially-symbolic calculator with support for units, derivatives, and more.
+A high-precision scientific calculator with support for units, derivatives, and more.
 
-This is nowhere near complete. Stay tuned.
+**todo:** ~~Try the [web version!]()~~
+
+Many features are missing, this is still under development.
 
 
-# TODO
-
-## Before For 1.0 release
- - Commands
- - Documentation (usage)
- - Documentation (comments)
- - Units
+# Features
+ - Extremely high precision
+   - Uses a rational datatype when possible,
+   - Uses a high-precision float when not.
+ - Pretty printing in prompt
+   - Makes expressions shorter and easier to understand
+ - **todo:** ~~Supports nearly all physical units~~
+   - ~~Accounts for units in calculations~~
+   - ~~Explicit conversion operator `->` or `to`~~
+ - **todo:** ~~Variable and function definitions~~
+ - **todo:** ~~Easy history recall~~
+ - **todo:** ~~Sums and products~~
 
 
-## General
- - CLI Options: version, help, evaluate
- - Compile to WASM => webapp
- - Trig tests
- - Fix tests
-   - Direct expression printing
-   - Better comparison
+# Reference
 
+## **Operators, sorted by priority (high to low)**
 
-## Internals
- - Copy expression
- - Non-recursive treeify
- - Faster factorial function. Maybe use gamma instead?
- - Remove extra calls to `.clone()`
- - Arbitrary precision float (rug doesn't offer arbitrary exponents)
+| Operator                  | Syntax               |
+|---------------------------|----------------------|
+| function application      | `sin`, `cos`, etc    |
+| factorial                 | `!`                  |
+| powers                    | `^`, `**`            |
+| implicit multiplication   | `3π`, `3(2+1)`, etc  |
+| square root               | `sqrt`, `rt`, `√`    |
+| negation                  | `-3`, `-(1 + 2)`     |
+| modulo (short)            | `%`                  |
+| multiplication, division  | `*`, `/`, `×`, `÷`   |
+| addition, subtraction     | `+`, `-`             |
+| modulo (long)             | `mod`                |
 
-## Features
- - Variable definitions
- - Function definitions
- - Units
- - Dice
- - Mean, Median, Min, Max: arrays and multi-arg functions
- - Derivatives
- - MiniCAS
- - Complex numbers
- - Config file
- - History to file
- - Reference previous results
- - acot/acoth functions
+Note that implicit multiplication has a higher priority than mulitiplication and division.
 
-## Prompt
- - Live syntax/output
\ No newline at end of file
+## **Functions**
+
+| Function                  | Syntax                      |
+|---------------------------|-----------------------------|
+| Absolute Value            | `abs`                       |
+| Floor, Ceiling, Round     | `floor`, `ceil`, `round`    |
+| Logarithm (base e)        | `ln`                        |
+| Logarithm (base 10)       | `log`                       |
+| sin, arcsin, cosecant     | `sin`, `asin`, `csc`        |
+| cos, arccos, secant       | `cos`, `acos`, `sec`        |
+| tan, arctan, cotan        | `tan`, `atan`, `cot`        |
+| hyperbolic sin, etc       | `sinh`, `asinh`, `csch`     |
+| hyperbolic cos, etc       | `cosh`, `acosh`, `sech`     |
+| hyperbolic tan, etc       | `tanh`, `atanh`, `coth`     |
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diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..79ded5d
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,51 @@
+# TODO
+
+Roadmap for fixes and features.
+
+## Pre-release
+ - Commands (help, clear, reset, quit, list constants, list units)
+ - Documentation (usage)
+ - Documentation (comments)
+ - Units, unit conversion
+
+## General
+ - CLI Options: version, help, evaluate
+ - Compile to WASM, publish a webapp
+ - Better tests
+   - Direct expression printing
+   - Better comparison
+   - Trigonometry
+ - Manpage
+
+
+## Internals
+ - Non-recursive treeify
+ - Faster factorial function. Maybe use gamma instead?
+ - Remove extra calls to `.clone()`
+ - Arbitrary precision float (rug doesn't offer arbitrary exponents)
+
+
+## Math Features
+ - Config file
+ - History to file
+ - Reference previous results
+ - Variable definitions
+ - Function definitions
+ - Units
+ - Dice
+ - Mean, Median, Min, Max: arrays and multi-argument functions
+ - Arbitrary base logarithm
+ - Derivatives
+ - CAS features (trig, roots and powers)
+ - Complex numbers
+ - acot/acoth functions
+ - Binary, hex, octal numbers
+ - Extra roots? (for convenience)
+ - Sums and products
+ - "per" as division?
+
+
+## Prompt
+ - Live syntax/output (like firefox js terminal)
+ - fish-style tab completion
+ - Numbered expressions, history recall
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