A slide rule is a hand-operated mechanical calculator consisting of slidable rulers for conducting mathematical operations such as multiplication, division, exponents, roots, logarithms, and …

This is a composite gallery of simulated slide rules that may be manipulated on your screen by use of your mouse, as if the slide rule is actually in your hand.

Sep 9, 2025 · Line up the right numbers on the scale, and you can multiply any two numbers together, with much less math than you would use with pencil and paper. Notice the gaps between numbers. …

Use our Slide Rule Calculator to multiply or divide numbers instantly. Fast, accurate, and user-friendly online calculator for everyone.

Interactive slide rule simulator - Experience the classic engineering calculator online. Learn multiplication, division, and squares using authentic logarithmic scales.

Casio fx-991CW– Advanced Scientific Calculator with High-Res 4-Tone Display | Natural Textbook Display | 540+ Functions, Numeric Calculus, Matrix Solver | Ideal for Engineering, Science & Exams

Feb 18, 2026 · Ever wanted to know how engineers made their calculations before digital calculators were on every workbench? [Richard Carpenter] and [Robert Wolf] have just the thing— a sliderule …

🏆 Features Emulates Traditional Slide Rule Calculations 🔢 Perform Multiplication, Division, Logarithms, and Roots 📜 Supports Trigonometric Functions (Sin, Cos, Tan) 📈 Adjustable Scales for Precise Computation …

Slide Rule for the Modern Day: Ah the noble slide rule. Once an staple of the engineer's tool belt, this form of handheld analog calculator seems to have been forgotten by all but a few.

This program replicates the most common types of slide rules: Straight, circular, spiral and cylindrical. Dozens of scales are included and numerous features that could never exist on a physical slide rule …