1 Logarithm Calculator | log(x) Calculator
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Logarithm Calculator

Calculate logarithm of a number to any base:

log  
Result:
Description:

* Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12

When:

b y = x

Then the base b logarithm of a number x:

logb x = y

Anti-logarithm calculator

In order to calculate log-1(y) on the calculator, enter the base b (10 is the default value, enter e for e constant), enter the logarithm value y and press the = or calculate button:

 
Result:

When

y = logb x

The anti logarithm (or inverse logarithm) is calculated by raising the base b to the logarithm y:

x = logb-1(y) = b y

Logarithm rules

Logarithm product rule

logb(x × y) = logb(x) + logb(y)

Logarithm quotient rule

logb(x / y) = logb(x) - logb(y)

Logarithm power rule

logb(x y) = y × logb(x)

Logarithm base switch rule

logb(c) = 1 / logc(b)

Logarithm base change rule

logb(x) = logc(x) / logc(b)

 

 


See also
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MATH CALCULATORS
Examinations of reasonable numbers. On the off chance that the indications of the looked at numbers are changed, at that point we can promptly say which number is more noteworthy and which is littler, so at the earliest reference point we will inspect the standard for contrasting levelheaded numbers and various signs. Further we will stop on examination of zero with other sane number. After this, we will harp on the correlation of positive sane numbers. At last, we continue to the standard of contrasting negative objective numbers. The hypothesis will be weakened with arrangements of trademark models.

Users write Now: Alexander Pereverzev • a year ago • edited - I liked everything, always saves at the right time, thank you for the work.

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