Deutsche Version |
The logarithm of a value of an arbitrary base can
be calculated, as well as all inverse calculations.
Formula: , that means also
The logarithm of the number a in base b is the exponent x such that a = bx
log 2 | = | lg, sometimes ld |
log e | = | ln or log |
log 10 | = | lg, sometimes log |
Shortened spelling:
log10 x | = | lg x |
loge x | = | ln x |
log2 x | = | lb x |
Please enter two values, the third will be calculated.
The natural logarithm ln is, when the base b = e. Euler's number e = 2.718281828459...
What is the logarithm of 4? Answer 0.60206 (exponent). Base b = 10. log 4 = 0.60206
What number the has exponent x = 0.81292? Answer 6.5 (number). Base b = 10. 100.81292 = 6.5
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