## Numerical Variables

These are referenced by the variable name. For example: [Age]

[Variable.!Observedl] is =1 when true, and =0 when false

[Variable.!Missing] is =1 when true, and =0 when false

### Arithmetic operators

An arithmetic operator combines two operands arithmetically to produce an intermediate value. The operators are:

+ |
Addition (A + B gives the sum of A and B) |

- |
Subtraction (A - B gives the difference of A and B) |

* |
Multiplication (A * B multiples A by B) |

/ |
Division (A / B divides A by B) |

^ |
Exponentiation (A ^ B raises A to power of B) |

% |
Modulus Division (A % B gives the remainder of A divided by B) |