principal branch (value)
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21—30 of 102 matching pages
21: 14.28 Sums
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►where the branches of the square roots have their principal values when and are continuous when .
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22: 4.4 Special Values and Limits
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4.4.19
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23: 5.2 Definitions
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5.2.3
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24: 31.9 Orthogonality
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►The branches of the many-valued functions are continuous on the path, and assume their principal values at the beginning.
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25: 4.45 Methods of Computation
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►For other values of set , where and .
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►Let have any real value.
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►Let have any real value.
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►For the principal branch
can be computed by solving the defining equation numerically, for example, by Newton’s rule (§3.8(ii)).
Initial approximations are obtainable, for example, from the power series (4.13.6) (with ) when is close to , from the asymptotic expansion (4.13.10) when is large, and by numerical integration of the differential equation (4.13.4) (§3.7) for other values of .
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26: 1.10 Functions of a Complex Variable
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1.10.3
,
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►One such branch is obtained by assigning and their principal values (§4.2(iv)).
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1.10.20
,
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27: 4.8 Identities
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►This is interpreted that every value of is one of the values of , and vice versa.
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4.8.10
►If and has its general value, then
…If and has its principal value, then
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4.8.13
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28: 1.4 Calculus of One Variable
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1.4.17
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29: 13.21 Uniform Asymptotic Approximations for Large
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►When through positive real values with () fixed
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►Other types of approximations when through positive real values with () fixed are as follows.
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►For extensions to complex values of see López (1999).
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►This reference also includes error bounds and extensions to asymptotic expansions and complex values of .
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►This reference also includes error bounds and extensions to asymptotic expansions and complex values of .
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30: 4.24 Inverse Trigonometric Functions: Further Properties
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►The above equations are interpreted in the sense that every value of the left-hand side is a value of the right-hand side and vice versa.
All square roots have either possible value.