The form of a numeric constant defined and illustrated in Part I is elaborated by the use of further letters, as in

. |
The decimal point is obeyed first |

_ |
The negative sign is obeyed next |

e |
Exponential (scientific) notation |

ad ar j |
Complex (magnitude and angle) in degrees or radians;
Complex number |

p x |
Numbers based on pi (o.1) and on Euler’s number
(the exponential ^1) |

b |
Base value (using a to z
for 10 to 35) |

For example,

The following lists illustrate the main points:

2.3e2 2.3e_2 2j3 230 0.023 2j3 2p1 1p_1 6.28319 0.31831 1x2 2x1 1x_1 7.38906 5.43656 0.367879 2e2j_2e2 2e2j2p1 2ad45 2ar0.785398 200j_200 628.319j6.28319 1.41421j1.41421 1.41421j1.41421 16b1f 10b23 _10b23 1e2b23 2b111.111 31 23 _17 203 7.875Negative integers following

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