
How can log(x) = ln(x)/ln(10)? - Physics Forums
2016年8月7日 · How can log(x) = ln(x)/ln(10)? B; Thread starter Natalinatul; Start date Aug 7, 2016; Aug 7, 2016 #1
How Do You Calculate Error Uncertainty for ln(x)? - Physics Forums
2013年11月28日 · fractional change in ln(x) = [ln(11) - ln(10)]/ln(10) = 0.04139 for fractional change in x = 1/10 = 0.1000. So δln(x)/ ln(x) = 0.4139 δx/x. but if δx = 0.1, fract. change in ln(x) is [ln(10.1) - ln(10)]/ln(10) = 0.004321 for a fractional change in x of 0.1/10 = 0.0100. So δln(x)/ln(x) = 0.4321 δx/x, pretty close to 0.4343.
Calculating Uncertainty, involving a logarithmic quantity - Physics …
2014年5月17日 · Essentially I'm asking if the uncertainty in μ = -5 log10 (d/10) is given by Δμ = 5 * ( Δd / d*ln(10) ) 1. The problem, all variables and given/known data I am to calculate the uncertainty in absolute magnitude (M), which is calculated using an …
Why do people refer ln(x) as log(x) - Physics Forums
2011年7月28日 · In the pre-computer era base 10 was unrivalled for tabulating (look up tables) and computational purposes. This is why log base 10 was called the common logarithm and, outside of pure mathematics, was just about universally referred to as "log". So traditionally "log" = "log10" was very commonly used and hence "ln" used for the natural log.
The coefficients of a power series for natural log - Physics Forums
2008年5月22日 · Homework Statement The function f(x) =ln(10 - x) is represented as a power series in the form f(x) = (sum from 0 to infinity) of c_{n}x^{n} Find the first few coefficients in the power series. The Attempt at a Solution I know how to find the coefficients in a normal looking...
Log(x) do you assume base 10 or base e? - Physics Forums
2014年7月28日 · It greatly depends on the context. ln(x) should be used instead of log(x) when in base e. But I know that a lot of mathemathicians write log(x) when they should write ln(x). log(x) without subscript usually means log base 10 (widely used in chemistry for instance).
Question of enthelpy of vaporization the diference from ln to log
2021年10月31日 · Next take the Ln of both sides - use a special rule for the Ln to simplify one of the sides into linear form - what happens is that you get your equation for Ln (P) and it turns out that it is nearly the same as your Log (P) except for an additional constant which is - Ln (10) . in value terms Ln (P) = -1780/T - -7.960 -Ln (10)
How to Solve for x in ln(x) + x = 10: Quick and Easy Method
2007年2月19日 · If ln(x)+ x= 10, then, taking the exponential of each side, e ln(x)+ x = xe x = e 10. x= W(e 10 ). Of course, the only way to evaluate that is to do some kind of numerical approximation as others have said,
When to Use Ln vs Log in Calculating Derivatives? - Physics Forums
2017年11月15日 · The derivative of 1/u is ln(u), not log 10 (u). When you are dealing with derivatives or integrals, the natural log has an advantage. In those situations, log 10 requires that you correctly include factors of ln(10) in your answers. CORRECTION: The derivative of ln(u) is 1/u. ( Thanks @lcgldr)
Prove e^ln(a)*b = a^b: Intuitive Proof - Physics Forums
2016年1月31日 · Yea I was doing a problem that had gotten simplified down to y = (1/2) e^[(ln(10/5))*t] and couldn't figure out how they got to y= (1/2)*10^(t/5) but then I remembered x^(ab) = (x^a)^b... ln and exp make intuitive sense to me since log base e of e... I just hit a psychological blocker since I had to apply too many rules at once.