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  2. Indeterminate form - Wikipedia

    en.wikipedia.org/wiki/Indeterminate_form

    A limit which unambiguously tends to infinity, for instance is not considered indeterminate. [2] The term was originally introduced by Cauchy 's student Moigno in the middle of the 19th century. The most common example of an indeterminate form is the quotient of two functions each of which converges to zero. This indeterminate form is denoted by .

  3. Exponentiation - Wikipedia

    en.wikipedia.org/wiki/Exponentiation

    For example, 3 5 = 3 · 3 · 3 · 3 · 3 = 243. The base 3 appears 5 times in the multiplication, because the exponent is 5. Here, 243 is the 5th power of 3, or 3 raised to the 5th power. The word "raised" is usually omitted, and sometimes "power" as well, so 3 5 can be simply read "3 to the 5th", or "3 to

  4. L'Hôpital's rule - Wikipedia

    en.wikipedia.org/wiki/L'Hôpital's_rule

    L'Hôpital's rule can be used on indeterminate forms involving exponents by using logarithms to "move the exponent down". Here is an example involving the indeterminate form 00: It is valid to move the limit inside the exponential function because the exponential function is continuous. Now the exponent has been "moved down".

  5. Formal power series - Wikipedia

    en.wikipedia.org/wiki/Formal_power_series

    A formal power series is a special kind of formal series, of the form. where the called coefficients, are numbers or, more generally, elements of some ring, and the are formal powers of the symbol that is called an indeterminate or, commonly, a variable. Hence, power series can be viewed as a generalization of polynomials where the number of ...

  6. Heaviside cover-up method - Wikipedia

    en.wikipedia.org/wiki/Heaviside_cover-up_method

    Here, we set up a partial fraction for each descending power of the denominator. Then we solve for the numerators, A and B. As ( 1 − 2 x ) {\displaystyle (1-2x)} is a repeated factor, we now need to find two numbers, as so we need an additional relation in order to solve for both.

  7. Modular arithmetic - Wikipedia

    en.wikipedia.org/wiki/Modular_arithmetic

    Adding 4 hours to 9 o'clock gives 1 o'clock, since 13 is congruent to 1 modulo 12. In mathematics, modular arithmetic is a system of arithmetic for integers, where numbers "wrap around" when reaching a certain value, called the modulus. The modern approach to modular arithmetic was developed by Carl Friedrich Gauss in his book Disquisitiones ...

  8. Tetration - Wikipedia

    en.wikipedia.org/wiki/Tetration

    The term superexponentiation was published by Bromer in his paper Superexponentiation in 1987. [3] It was used earlier by Ed Nelson in his book Predicative Arithmetic, Princeton University Press, 1986. The term hyperpower [4] is a natural combination of hyper and power, which aptly describes tetration.

  9. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    [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. When exponents were introduced in the 16th and 17th centuries, they were given precedence over both addition and multiplication and placed as a superscript to the right of ...