Powharmonic series: Difference between revisions

Cmloegcmluin (talk | contribs)
Cmloegcmluin (talk | contribs)
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An equality involving exponents and logarithms helps us understand why:
An equality involving exponents and logarithms helps us understand why:


<math>\qquad x^{\log_{b}a} = a^{log_{b}x}
<math>\qquad n^{\log_{b}a} = a^{log_{b}n}
</math>
</math>


Breaking this down step by step:
Breaking this down step by step:


# <span><math>\log_{b}x</math></span> gives the power to which <span><math>b</math></span> must be raised to give <span><math>x</math></span>
# <span><math>\log_{b}n</math></span> gives the power to which <span><math>b</math></span> must be raised to give <span><math>n</math></span>
# whenever <span><math>x</math></span> is an integer power (squared, cubed, etc.) of <span><math>b</math></span>, <span><math>\log_{b}x</math></span> will be an integer
# whenever <span><math>n</math></span> is an integer power (squared, cubed, etc.) of <span><math>b</math></span>, <span><math>\log_{b}n</math></span> will be an integer
# whenever <span><math>\log_{b}x</math></span> is an integer, we raise <span><math>a</math></span> to an integer power
# whenever <span><math>\log_{b}n</math></span> is an integer, we raise <span><math>a</math></span> to an integer power
# <span><math>x</math></span>, being the pitch # or index, increments linearly by 1
# <span><math>n</math></span>, being the pitch # or index, increments linearly by 1
# it takes longer and longer each time for <span><math>x</math></span> to reach the next power of <span><math>b</math></span>
# it takes longer and longer each time for <span><math>n</math></span> to reach the next power of <span><math>b</math></span>


=== initial count ===
=== initial count ===