1. Wrichik Basu

    Should the Dalvik cache on Android phones be cleared periodically?

    Finally, after a lot of hesitation, I rooted my phone (Samsung Galaxy On7, Android 6.0.1) using Magisk systemless root. The main aim was to remove pre-installed useless software (often termed "bloatware"). I didn't want to flash Magisk using TWRP, because installing TWRP would remove the stock...
  2. BiGyElLoWhAt

    How to copy and simulate android on PC?

    Summary: I want to basically multipartition my pc and use MY android OS copied from my phone as the dual boot OS. Hi all, it's been awhile since I've posted. Sorry for AWOL. What I want to do: Partition my hard drive and run my exact copy of android on the other partition. Why: I want to...
  3. hilbert2

    I Is there a name for this approximation?

    Because it holds that ##\displaystyle\int_{1}^{x}\frac{dt}{t} = \log x##, and ##\displaystyle\int_{1}^{x}\frac{dt}{t^a} = \frac{1}{a-1}\left(1-\frac{1}{x^{a-1}}\right)\hspace{20pt}##when ##a>1## it could be expected that ##\displaystyle\frac{1}{a-1}\left(1-\frac{1}{x^{a-1}}\right)...
  4. David Browning

    I Any Advice Analyzing Root Data

    I've recently started my new RA position, and I've been given the task of analyzing a root data file. I'm not completely lost, but I don't exactly know what I'm doing. The point of my post is not to ask for answers, merely advice. A place I could go for info on data analytics. Pointers on how to...
  5. Ventrella

    I Would the opposite of a perfect power be called a "root"?

    I would like to know if there is an official name for the class of integers that are (not) perfect powers. A perfect power is a number that can be expressed as xn, where x and n are both integers > 1. I have been calling these integers "roots" - since they do not have any integer roots of their...
  6. Math_QED

    Every positive real number has a unique positive n'th root

    1. Homework Statement Show, using the axiom of completeness of ##\mathbb{R}##, that every positive real number has a unique n'th root that is a positive real number. Or in symbols: ##n \in \mathbb{N_0}, a \in \mathbb{R^{+}} \Rightarrow \exists! x \in \mathbb{R^{+}}: x^n = a## 2. Homework...
  7. J

    Reconstruction of the Fourier transform from its parts

    I am using ROOT to calculate the Fourier transform of a digital signal. I can extract the individual parts of the transform, the magnitude and phase in the form of a 1D histogram. I am attempting to reconstruct the transforms from the phase and magnitude but cannot seem to figure it out. Any...
  8. A

    I'm a little rusty, cant solve x+e^x=b

    1. Homework Statement Hi, I'm new here. I'm really rusty, I resume my career this year, and I'm reading 'the spivak book', (for Calculus 1). Making some exercises, I get curious about how to solve this: x+e^x=4 I would love if someone could give me any trick 2. Homework Equations 3. The...
  9. AdityaDev

    Ln(x) less than root(x)

    I was going through some important points give in my textbook and I saw this: ##\log_e x < \sqrt x## How did they get this? I know calculus so you can show this using differentiation, etc. One possible way is that they took ##f(x)=\sqrt x-\log_e x## And tried to prove it is always greater than zero.