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Note: x > 0 is assumed throughout this article, and the constant of integration is omitted for simplicity. Integrals involving only logarithmic functions [ edit ]
The multiple valued version of log(z) is a set, but it is easier to write it without braces and using it in formulas follows obvious rules. log(z) is the set of complex numbers v which satisfy e v = z; arg(z) is the set of possible values of the arg function applied to z. When k is any integer:
The asymptotic behavior for x → ∞ is = (). where is the big O notation.The full asymptotic expansion is =! ()or / + + () + () +. This gives the following more accurate asymptotic behaviour:
Because log(x) is the sum of the terms of the form log(1 + 2 −k) corresponding to those k for which the factor 1 + 2 −k was included in the product P, log(x) may be computed by simple addition, using a table of log(1 + 2 −k) for all k. Any base may be used for the logarithm table. [53]
Integration is the basic operation in integral calculus.While differentiation has straightforward rules by which the derivative of a complicated function can be found by differentiating its simpler component functions, integration does not, so tables of known integrals are often useful.
Download as PDF; Printable version; In other projects ... Boole's rule, named after George Boole, is a method of numerical integration. Formula
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These rules can be, in fact, stated as a theorem: one shows [1] that the proposed change of variable reduces (if the rule applies and if f is actually of the form () = (, ) (, )) to the integration of a rational function in a new variable, which can be calculated by partial fraction decomposition.