Scientific Calculator
Solve complex math problems, trigonometry, and more.
History
What is a Scientific Calculator?
A Scientific Calculator goes beyond basic arithmetic (+, -, *, /). It is designed to solve complex problems in science, engineering, and mathematics. It includes functions for trigonometry, logarithms, exponents, and statistical calculations.
DEG vs. RAD: The Most Important Setting
[Image of degree vs radian circle]This is the #1 reason for wrong answers in exams!
- DEG (Degrees): Used in basic geometry and most school/college level math. A full circle is 360 degrees. (e.g., sin(90) = 1).
- RAD (Radians): Used in advanced calculus and physics. A full circle is 2π radians. (e.g., sin(π/2) = 1).
Always check the toggle switch at the top of the calculator before starting your problem.
Order of Operations (BODMAS / PEMDAS)
This calculator follows the standard order of operations to ensure accuracy:
- B/P (Brackets/Parentheses): Things inside `( )` are calculated first.
- O/E (Orders/Exponents): Powers (`^`) and Roots (`√`) are next.
- DM (Division & Multiplication): Calculated from left to right.
- AS (Addition & Subtraction): Calculated last, from left to right.
Frequently Asked Questions (FAQs)
Q. What is `e`?
Euler's number (`e`) is a mathematical constant approximately equal to 2.71828. It is the base of the natural logarithm (`ln`) and is essential in calculus and compounding growth calculations.
Q. What is `log` vs `ln`?
log usually refers to `log10` (Log base 10).
ln refers to `loge` (Natural Log, base `e`).
Q. How to calculate Factorial (n!)?
Factorial implies multiplying a number by all integers below it down to 1.
Example: 5! = 5 × 4 × 3 × 2 × 1 = 120.