I have set up passwordless authentication for SSH in the past, and thought that I understood it. However, after being away from things for … | Read the rest of http://www.webhostingtalk.com/showthread.php?t=1734313&goto=newpostRead more
I have set up passwordless authentication for SSH in the past, and thought that I understood it. However, after being away from things for … | Read the rest of http://www.webhostingtalk.com/showthread.php?t=1734313&goto=newpostRead more
I want to start contributing to open source. What is the systematic procedure that experienced android devs use to understand the code? P.S. I found good articles on how to dive into large code bases but basically, I am looking for an answer which is more specific to android dev using java. What are theRead more
I’m a beginning graduate student reading Ozsvath-Szabo’s foundational paper, Holomorphic disks and topological invariants for closed 3-manifolds. What I have trouble understanding is a formula in Lemma 2.19, a formula computing the difference of two spin^c structures. Here they claim that $ s_z(\mathbb{x})-s_z(\mathbb{y})=(deg_{D_0}(v_\mathbb{x})-deg_{D_0}(v_\mathbb{y}))Pd(\gamma_\mathbb{x}-\gamma_\mathbb{y})$ holds. For those who are not familiar with the notations in theRead more
According to the Single Responsibility Pattern (SRP) a method or class should have one responsibility. I have read a couple of sources and viewed some videos and I would like to understand it by writing some code samples. According to me, the following: def addAndSubtract(a,b,c) a + b – c end is conflicting with theRead more
I’m trying to understand a particular point in the proof of Koszul duality between $ D^b(\Lambda(V))$ and $ D^b(S(V^*))$ as seen in “Algebraic Bundles over $ \mathbb{P}^n$ and Problems of Linear Algebra” by Bernstein, Gelfand and Gelfand. In particular, I am trying to work through Prop. 3, where we introduce functors $ F: C^b(\Lambda(V)) \rightarrowRead more
I’ve started building a custom blockchain as a side project. The goal is to understand and familiarize myself with implementation details that are not usually described in a “What is blockchain” article or similar post. I’m looking for sources, with good examples if possible, on how different problems are solved like block publishing and sharing,Read more
When I am running through an example for Sha256 I am not understanding how to arrive at the right answer. If I use the following Hex string: 3ebb2d68d7007148b184e57bba9697d76bc04141155c57f97e3b92c5fd6a46bd and run this through sha256, I get the following: 5f2edbb41f884a99227aedaeb5dd1739431e531d1e7be2a19976839bf9ccc17f However, if I go the website: https://anyhash.com/sha256?hello and run the same example through sha256, but with theRead more
Let’s say we have users and addresses. In RDBMs world we would have many to many relationship. +———–+ +———+ +————-+ | User | | Address | | UserAddress | +———–+ +———+ +————-+ | Id | | Id | | UserId | | FirstName | | Street | | AddressId | | LastName | | CityRead more
Would anyone know how to prove the following, coming from the proof of theorem 2 in this paper (https://arxiv.org/pdf/1605.08671.pdf)? Consider i.i.d. Sub Gaussian random variables $ (X_t)_{t\geq 1}$ with parameter $ \sigma$ and mean $ \mu$ . Let $ u \geq 1$ . Then $ P[\exists v \in \{2^u,…,2^{u+1} \} | \frac{1}{v} \sum_{t=0}^v X_t –Read more
I’m developing an application where it read data from different data sources. And then those data should be pre-processed and then go through some chain of steps (Filters ?) where those data will get processed and augmented. Finally those data should be written to a common data base. I’m thinking of a Pipe and FilterRead more