`A+B` `A-B` | Arbitrary chains of addition and subtraction. |

`A*B` `A/B` | Arbitrary chains of multiplication and division. |

`A++B` `A--B` | Arbitrary chains of per-die addition and subtraction. Each value modifies each individual die roll. `4d6--2` rolls 4d6 with 2 subtracted from each. |

`(E)` | Parenthetic expressions |

`A<<B` | Counts the quantity of values in A that are lower than or equal to the value B. `10d6 << 3` counts the number of dice at 3 or below. |

`A>>B` | Counts the quantity of values in A that are greater than or equal to the value B. `10d6 >>4` counts the number of dice at 4 or above. |

`A<B` `A>=B` | Equality comparison on A and B. Must be the last operator (`(1 < 2) * 5` is invalid, `1 < (2 * 5)` is valid). Supported operators: `<` `<=` `>` `>=` `=` |

`X#A` | Evaluates the expression A X times. Use for stat generation: `6#4d6d1` |