The Newmanry History

53M Page 351

This is the usual Colossus rectangle method : it is often disadvantageous

the 3-way rectangling switch at the extreme right of the control panel has

The other switches are on the rectangling panel. Any chi-wheel can be

The subtraction gadget is controlled by a series of switches labelled 1 to

The Theta(ij)^2 significance test is based on the number of occurrences of

At the top of the rectangling panel is a row of cyclometers to record these

Below these is a row of jacks, one for each cyclometer. A pulse here steps

Below these again are two rows of jacks labelled 1,2,3.... A score of +-

These score jacks can be plugged arbitrarily to the cyclometer jacks.

Colossus 6 can make a rectangle in the form of punched tape. A negative

There is a score jack labelled CR which carries the pulse of the carriage

In any cell of the rectangle containing a place where Z = 9 adjacent to

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