911

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The Cintra/Tektronix 911 aka Statistician 911 is a desktop statistical calculator with a Nixie display.

It replaces the Log(x), tan(x), hyper, and π keys of its scientific-type sister model 909 with factorials and statistical functions.

The 926 Programmer provides programming functionality with conditionals, branching and subroutines for the 909/911.

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