How to enable engineering mode?

To the left of the main block of buttons is a vertical toggle bar. Click on it to expand a panel with scientific functions (trigonometry, roots, logarithms).

Can I enter numbers using the keyboard?

Yes, the calculator supports input from a physical keyboard (Numpad). The number keys, Enter (=), Backspace (delete) and Escape (reset) work.

Where can I see the calculation history?

The history is displayed in a slide-out box directly above the display. It appears automatically after the first action performed.

Engineering calculator

We have created a tool that adapts to your needs. By default, this is a compact assistant for household calculations. But just press one button and it turns into a powerful engineering station.

🚀 Main feature: Click on the side button “ENGINEERING” on the left to open the panel of scientific functions (sines, roots, powers). Click again to collapse calculator back.

What can this calculator do?

✅ Two operating modes:does not take up extra space on the screen when complex functions are not needed.
✅ Calculation history: all your actions are saved in the feed above the display. You can always check what you counted 5 minutes ago.
✅ Keyboard control: Enter numbers and symbols using the NumPad of your keyboard, use Enter for the result and Backspace to delete.
✅ Scientific functions: trigonometry (sin, cos, tan), logarithms (log), factorial (n!) and exponentiation.

Button instructions

√x - Square root of the number.

x² - Raising a number to square.

xʸ - Raising the number X to the power Y.

n! - Factorial of a number (the product of all numbers from 1 to n).

Frequently asked questions (FAQ)

❓ How to clear the calculation history?

As soon as the first entry appears in the history, a red cross (✕) will appear in the upper corner of the list. Click on it to completely clear the activity feed.

Больше по теме: Mathematics

SOU🎓 What is SOC and why count it? The average educational level (ALE) is the main indicator of the quality of education, which is required by head teachers and the Ministry of Education of the Russian Federation.

Fractions ⅕➗ How to Divide Fractions: The Reverse and Multiply Rule Our calculator does all the work instantly, but understanding the principle will help you check the results.

Fractions ⅕Need to multiply fractions, but are not sure of the result? Our online fraction multiplying calculator will instantly perform the operation on any fraction, mixed, integer or negative fraction - and show a complete step-by-step solution.

❓ Does the calculator work without the Internet?

Yes. Once the page has fully loaded, the script runs inside your browser. You can turn off the Internet and calculations will continue to run.

❓ Why is the sine of 90 equal to 0.89 and not 1?

By default, most web calculators (including this one) accept angles in degrees. Make sure you are not trying to enter radians.

❓ Is it possible to copy the result?

Yes, the result field is a standard text input field. You can select a number with the mouse, press Ctrl+C and paste it into another document.