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  2. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    For example, multiplication is granted a higher precedence than addition, and it has been this way since the introduction of modern algebraic notation. [ 2 ] [ 3 ] Thus, in the expression 1 + 2 × 3 , the multiplication is performed before addition, and the expression has the value 1 + (2 × 3) = 7 , and not (1 + 2) × 3 = 9 .

  3. PEMDAS - Wikipedia

    en.wikipedia.org/?title=PEMDAS&redirect=no

    From an acronym: This is a redirect from an acronym to a related topic, such as the expansion of the acronym.. Remember that an acronym is a special type of initialism that can be spoken as a word, such as "NATO" or "radar" or "ANOVA".

  4. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1. Means "less than or equal to". That is, whatever A and B are, A ≤ B is equivalent to A < B or A = B. 2. Between two groups, may mean that the first one is a subgroup of the second one. ≥ 1. Means "greater than or equal to".

  5. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    The angle difference identities for ⁡ and ⁡ can be derived from the angle sum versions by substituting for and using the facts that ⁡ = ⁡ and ⁡ = ⁡ (). They can also be derived by using a slightly modified version of the figure for the angle sum identities, both of which are shown here.

  6. Modulo - Wikipedia

    en.wikipedia.org/wiki/Modulo

    In computing, the modulo operation returns the remainder or signed remainder of a division, after one number is divided by another, called the modulus of the operation.. Given two positive numbers a and n, a modulo n (often abbreviated as a mod n) is the remainder of the Euclidean division of a by n, where a is the dividend and n is the divisor.

  7. Today’s NYT ‘Strands’ Hints, Spangram and Answers for ...

    www.aol.com/today-nyt-strands-hints-spangram...

    An example spangram with corresponding theme words: PEAR, FRUIT, BANANA, APPLE, etc. ... NYT Strands Spangram Answer Today. Today's spangram answer on Saturday, January 18, 2025, is CAPTAIN. ...

  8. A Sleep Expert Warns Against "Unhealthy" Sleep Trend - AOL

    www.aol.com/sleep-expert-warns-against-unhealthy...

    “For example, a dog may have a three-to six-hour rhythm, and so that's why they're sleeping part of the time, and then they're up,” says Dr. Pristas. “Human beings have a sleep pattern that ...

  9. Tetration - Wikipedia

    en.wikipedia.org/wiki/Tetration

    For example, in n z with z = i, tetration is achieved by using the principal branch of the natural logarithm; using Euler's formula we get the relation: i a + b i = e 1 2 π i ( a + b i ) = e − 1 2 π b ( cos ⁡ π a 2 + i sin ⁡ π a 2 ) {\displaystyle i^{a+bi}=e^{{\frac {1}{2}}{\pi i}(a+bi)}=e^{-{\frac {1}{2}}{\pi b}}\left(\cos {\frac ...