Basic math symbols
Basic math symbols
Symbol | Symbol Name | Symbol Meaning | Example |
> | Strict Inequality | Greater than | 5 > 4 5 is greater than 4 |
< | Strict Inequality | Less than | 4 < 5 4 is less than 5 |
≥ | Inequality | greater than or equal to | 5 ≥ 4, x ≥ y means x is greater than or equal to y |
≤ | Inequality | Less than or equal to | 4 ≤ 5, x ≤ y means x is less than or equal to y |
= | Equals Sign | Equality | 5 = 2+3 5 is equal to 2+3 |
≠ | Not equal sign | Inequality | 5 ≠ 4 5 is not equal to 4 |
≈ | Approximately Equal | Approximation | sin(0.01) ≈ 0.01, x ≈ y means x is approximately equal to y |
( ) | Parentheses | Calculate expression inside first | 2 × (3+5) = 16 |
[ ] | Brackets | Calculate expression inside first | [(1+2)×(1+5)] = 18 |
+ | Plus Sign | Addition | 2 + 2 = 4 |
− | Minus Sign | Subtraction | 4 - 2 = 2 |
± | Plus - Minus | Both plus and minus operations | 3 ± 5 = 8 or -2 |
± | Minus - Plus | Both plus and minus operations | 3 ∓ 5 = -2 or 8 |
* | Asterisk | Multiplication | 3 * 4 = 12 |
× | Times Sign | Multiplication | 3 x 4 = 12 |
⋅ | Multiplication Dot | Multiplication | 3 ⋅ 4 = 12 |
÷ | Division Sign / Obelus | Division | 4 ÷ 2 = 2 |
/ | Division Slash | Division | 4 / 2 = 2 |
— | Horizontal Line | Division / Fraction | |
Mod | Modulo | Remainder Calculation | 7 mod 2 = 1 |
. | Period | Decimal point, decimal separator | 2.56 = 2+56/100 |
ab | Power | Exponent | 22 = 4 |
a^b | Caret | Exponent | 2 ^ 3 = 8 |
√a | Square root | √a ⋅ √a = a | √9 = ±3 |
3√a | Cube root | 3√a ⋅ 3√a ⋅ 3√a = a | 3√8 = 2 |
4√a | Fourth root | 4√a ⋅ 4√a ⋅ 4√a ⋅ 4√a = a | 4√16 = ±2 |
n√a | n-th root (radical) | for n=3, n√8 = 2 | |
% | Percent | 1% = 1/100 | 10% × 30 = 3 |
‰ | Per-Mille | 1‰ = 1/1000 = 0.1% | 10‰ × 30 = 0.3 |
ppm | Per-million | 1ppm = 1/1000000 | 10ppm × 30 = 0.0003 |
ppb | Per-billion | 1ppb = 1/1000000000 | 10ppb × 30 = 3×10-7 |
ppt | Per-trillion | 1ppt = 10-12 | 10ppt × 30 = 3×10-10 |
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