slide rule
sliding rule

At the age of 10, she was using a slide rule.

Most people find slide rules difficult to learn and use.

Inside, Tom was hard at work with a slide rule.

It is time to give thanks and put away the slide rule.

More necessary, you can get along without a slide rule.

I should really have to sit down and work it out with a slide rule.

Slide rules can be made out of cardboard or paper.

Well, we know that a slide rule is nothing but adding.

It almost feels as if the slide rule has returned.

A slide rule could do those things, and it had no battery to run down.

You don't need a slide rule to figure it out.

In my early days, the complex calculations seemed to call for a slide rule.

"Say good night to your slide rule for us," Walker called.

Using a slide rule, Tom quickly worked out a number of equations.

The slide rule, he said, is an even harder sell.

We've got to have somebody out there who can use slide rules."

I'll just pop back in the office and pick up my slide rule where I left it.

I tell you, the slide rule is the greatest invention since girls.

As of late yesterday, one bid had been placed on the slide rule.

Now I'm going to tell you what the professors with the slide rules told me."

A slide rule displays all the terms of a calculation along with the result.

Along with pitches, there is a vast range of slide rule information.

There are still a handful of sources for brand new slide rules.

Because the new program has more inputs, the slide rule approach is no longer feasible.

"Those companies make slide rules and are being offered calculators," he says.

Description and Use of the Sliding Rule in Arithmetic and in the Mensuration of Surfaces and Solids, &c., 1799; 2nd edit.

'Fog's thicker here,' he said, using the sliding rule to pencil in the line of our course through the passage, checking the distance with the dividers, then scribbling 220 - 8m.

In 1821, Nathaniel Bowditch, in the American Practical Navigator, described the use of a "sliding rule" which contained scales trigonometric functions on the fixed part and a line of log-sines and log-tans on the slider.