Sep 9, 2025 · To someone who doesn't know how to use it, a slide rule looks like a ruler designed by Picasso. There are at least three different scales, and on most of them the numbers aren't …

To do a calculation with a slide rule you reduce all numbers to scientific notation with 2-4 digits then use the slide rule to perform the basic operations. In a separate calculation you find the …

A More Complete Slide Rule Tutorial: A member at Instructables asked me to explain how to use a slide rule for the sake of those who came along about the time electronic calculators …

Multiplication and division are performed using the C and D scales. Square and square root are performed with the A and B scales. The numbers are marked according to a logarithmic scale. …

Part 2 is now LIVE: • How to Use a Slide Rule 2: Trig, Log, and ... Here I cover the most basic operations of a slide rule: multiplication/division and squares/square roots.

Nov 22, 2025 · [Amen Zwa, Esq.] not only tells you how slide rules came about, but also how to use many of the common scales. You can also see his collection and notes on being a casual …

Despite being a simple mechanical device, the slide rule can help with multiplication, division, square roots, logarithms, and trigonometric functions. In this article, we’ll discuss how to use a …

n using the slide rule. We'll use the scales labeled C and D. These two scales are laid out so that each number x is log(x) times 6 inches from the left end o the 6 inch long scale. The numbers …

Basic Slide Rule Instructions To multiply two numbers on a typical slide rule, the user set the left index (start of the scale) on the C scale to line up with one factor on the D scale.

This section tells you how to use a slide rule. It includes a guide to the most common uses of a rule and instructions for some non-standard rules. Instructions for some common and not-so …