the log of a number, X, is equal to some value , N, and by definition
10 to the N power =X
10 to any power is always positive
There is no answer - it is an error: negative numbers do not have logarithms. The log if a number tells to what power the (positive) base must be raised to get the number. Raising any positive number to any power will never result in a negative number, so it is an error to try and take the log of a negative number.
Logs are defined only for positive numbers so the log of a negative number does not exist.
Yes. The logarithm of 1 is zero; the logarithm of any number less than one is negative. For example, in base 10, log(0.1) = -1, log(0.01) = -2, log(0.001) = -3, etc.
Log(y) can be any number, positive or negative, no limits. It all depends on the value of 'y'.
The logarithm function is the inverse of the exponential function. Take the exponential function (base 10): y = 10x. The inverse of this is x = 10y. The function y = log(x) is used to define this inverse function. First look at y = 10x. Any real value of x will yield a positive real value for y. If x = 0, then y = 1; if x < 0 (negative) then y is between 0 and 1 (it will never equal zero, though). A value of 10-99999 is very close to zero, but not quite there. There are no real values of x which will give a negative y value for y = 10x. Now look at y = log(x) or x = 10y. No matter what real values for y, that we choose, x will always be a positive number, so a negative value of x in y = log(x) is not possible if you are limiting to real numbers. It is possible with complex and imaginary numbers to take a log of a negative number, or to get a negative answer to y = 10x.
There is no answer - it is an error: negative numbers do not have logarithms. The log if a number tells to what power the (positive) base must be raised to get the number. Raising any positive number to any power will never result in a negative number, so it is an error to try and take the log of a negative number.
The negative log of a number is the log of the number's reciprocal ('1' divided by the number).
You can't take the log of negative numbers - at least, not while you stay in the realm of real numbers.You can't take the log of negative numbers - at least, not while you stay in the realm of real numbers.You can't take the log of negative numbers - at least, not while you stay in the realm of real numbers.You can't take the log of negative numbers - at least, not while you stay in the realm of real numbers.
Logs are defined only for positive numbers so the log of a negative number does not exist.
Yes. The logarithm of 1 is zero; the logarithm of any number less than one is negative. For example, in base 10, log(0.1) = -1, log(0.01) = -2, log(0.001) = -3, etc.
Log(y) can be any number, positive or negative, no limits. It all depends on the value of 'y'.
To calculate the number of decibels that power-level-'A' is greater than power-level-'B',-- Divide 'A' by 'B'-- Take the 'log' of the quotient-- Multiply the 'log' by 10 .If the result is negative, then 'A' is that many decibels lower than 'B'.
Exponential
Because the log of zero is "negative infinity", and the calculator display is too narrow to display that number.
If that is the hydronium ion concentration, then -log(H+) = pH negative natural common log10 of the H+concentration. If this is the hydroxide ion concentration, there's a couple ways of going about it. You could find the pOH = -log(OH-) and subtract it from 14 Or you could solve for the hydronium ion conc. and then take the negative log of the result. Just remember p of anything (pH, pOH, pKa, etc) is just the negative natural common log of whatever number.
you cant log out from it you have to delete it or have it left
some times dams have negitives effects I added the answer below to a link of a Yahoo answer; however, it IS possible to calculate the log of a negative number but you have to work in complex numbers.