This is a free online math calculator together with a variety of other free math calculators that compute standard deviation, percentage, fractions, and more.

To enter a minus sign, use the [ - ] key at the top or on the side numeric keypad. Use the [ * ] key on the side numeric keypad to enter the multiplication sign. Use the [ / ] key on the side …

To remember which way around the "<" and ">" signs go, just remember:

Math Calculator from Mathway will evaluate various math problems from basic arithmetic to advanced trigonometric expressions.

The square root of minus one √(−1) is the "unit" imaginary number, the equivalent of 1 for Real Numbers. In mathematics the symbol for √(−1) is i for imaginary. But in electronics the symbol …

Step 1: Enter the Equation you want to solve into the editor. The equation calculator allows you to take a simple or complex equation and solve by best method possible. Step 2: Click the blue …

In mathematics, −1 (negative one or minus one) is the additive inverse of 1, that is, the number that when added to 1 gives the additive identity element, 0. It is the negative integer greater …

Draw, Scan, Solve, and Learn! Solve long equations, draw in landscape! See how to solve problems and show your work—plus get definitions for mathematical concepts. Instantly graph …

QuickMath will automatically answer the most common problems in algebra, equations and calculus faced by high-school and college students. The algebra section allows you to expand, …

Symbolab is the best step by step calculator for a wide range of math problems, from basic arithmetic to advanced calculus and linear algebra. It shows you the solution, graph, detailed …