Sunday, February 12, 2012

Where at all "logarithm" used?

Just like that, a thought crossed my mind. Where at all "logarithm" used? (Do you remember the log book we use in Physics lab during school days?)

Went to wikipedia to see where it is used. I was redirected to "exponential" to understand logarithm. It was interesting to read. But atlast didn't understand anything.

Then I came back to Logarithm(without understanding what it means) to find the usage of it. Wikipedia says,

"Logarithmic scales reduce wide-ranging quantities to smaller scopes. For example, the decibel is a logarithmic unit quantifying sound pressure and voltage ratios. In chemistry, pH is a logarithmic measure for the acidity of an aqueous solution. Logarithms are commonplace in scientific formulas, and in measurements of the complexity of algorithms and of geometric objects called fractals. They describe musical intervals, appear in formulas counting prime numbers, inform some models in psychophysics, and can aid in forensic accounting"

நெறைய எடத்துல யூஸ் பண்ணுறாங்கனு மட்டும் புரியுது. வேற ஒன்னும் வெளங்கல

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