The Arabs ' 4 still had the early concept of the cross, but for the sake of efficiency, was made in one stroke by connecting the "western" end to the "northern" end; the "eastern" end was finished off with …

Step 1: Enter the expression you want to evaluate. The Math Calculator will evaluate your problem down to a final solution. You can also add, subtraction, multiply, and divide and complete any arithmetic …

Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with in-depth information.

Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

Aug 1, 2025 · For scientific notation use "e" notation like this: -3.5e8 or 4.7E-9 Rounding. Specify whether you want to round your answer, and how many digits or decimal places to round to. This …

Free Online Scientific Notation Calculator. Solve advanced problems in Physics, Mathematics and Engineering. Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, …

Aug 1, 2025 · Using long division to solve this problem by hand or in your head, reducing 9/12 = 3/4, might make the problem easier. You may even recognize that 3/4 = 0.75 because 3 quarters equals …

Dec 9, 2025 · A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ४ (4)), a cursive form of four lines (to represent the number four) arranged in the shape of a cross (resembling …

The equations section lets you solve an equation or system of equations. You can usually find the exact answer or, if necessary, a numerical answer to almost any accuracy you require.

Feb 5, 2026 · Explore the hidden properties of 4, an even semiprime number composed of a single prime number multiplied by itself. Includes Prime Factorization, Divisors, Bases and Fun Facts for …