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How strong is the effect of sodium ions really?
Another option I have is making KClO3 from KCl, using MMO electrodes (I have done that in the past). ... |
10-1-2024 at 05:07
by: woelen |
How strong is the effect of sodium ions really?
I purchased a PbO2 anode and intend to make NaClO4 with these, by electrolysing a solution of NaClO3 ... |
10-1-2024 at 04:55
by: woelen |
Relative number of moles
This of course occurs much more. The simplest example is H2O2. It contains H : O = 1 : 1, but the mo ... |
8-1-2024 at 07:57
by: woelen |
Relative number of moles
[rquote=689072&tid=160014&author=Fulmen]Example: Al2O3 has a relative ratio of 1:1.5 but an ... |
8-1-2024 at 00:46
by: woelen |
Easy way to make phosphorus pentachloride with easy to get reagents
I agree with Bedlasky. I have ferrophosphorus and I have Cu3P (copper(I) phosphide). Both are quite ... |
8-1-2024 at 00:26
by: woelen |
Using transition metal mineral acid salts as complexing salts with alcohol or acetylene and ammonia as aliphatic amine catalysts
The term "ammine" stands for ammonia-complexes and from them it is not possible to make amines.
E ... |
4-1-2024 at 03:32
by: woelen |
Speed of C programs, relative to Java
@Rainwater: The data sets are not identical, but comparable. Actually, even between two runs on the ... |
31-12-2023 at 11:19
by: woelen |
Speed of C programs, relative to Java
For quartics, generating, solving 100M equations, and analysing the results:
- Java: 35 seconds
- ... |
29-12-2023 at 02:12
by: woelen |
Speed of C programs, relative to Java
It does make some difference.
In my quartic solver code it hardly matters, but that code only us ... |
27-12-2023 at 11:01
by: woelen |
Accurate solver of quartic equations.
I developed a solver for quartic equations (general 4th degree equations with 5 coefficients). I thi ... |
21-12-2023 at 10:45
by: woelen |
Do you need an FEL to produce energetics?
For me, the border is at where you make practically applicable explosives in larger quantities, such ... |
19-12-2023 at 00:14
by: woelen |
The Short Questions Thread (4)
I don't think so, or only with great difficulty. ThO2, like many other oxides, is quite inert if it ... |
15-12-2023 at 00:12
by: woelen |
Introduction
Welcome to the forums. I hope to see interesting contributions from you soon! |
14-12-2023 at 11:30
by: woelen |
Speed of C programs, relative to Java
For solving polynomial equations, the so-called companion matrix is used. This indeed is a sparse ma ... |
14-12-2023 at 05:27
by: woelen |
Speed of C programs, relative to Java
In Java there is no 128-bit IEEE754, at least not through standard code. There may be some software ... |
13-12-2023 at 12:10
by: woelen |
Speed of C programs, relative to Java
The software returns the roots. It is possible to detect multiple roots. One can compute guaranteed ... |
13-12-2023 at 06:17
by: woelen |
Speed of C programs, relative to Java
[rquote=689426&tid=160035&author=Keras]
Your pointer to the extended precision library is v ... |
13-12-2023 at 01:27
by: woelen |
Speed of C programs, relative to Java
I only timed the actual solving of the generated quartics and doing the analysis of the error. The t ... |
13-12-2023 at 01:02
by: woelen |
Speed of C programs, relative to Java
I tried the -ffast-math option. It makes the C-code somewhat faster.
Solving 100M quartics, plus ... |
12-12-2023 at 11:23
by: woelen |
Speed of C programs, relative to Java
I'll try compiling with the -fassociative-math option or the -ffast-math option. Sounds interesting. ... |
12-12-2023 at 07:55
by: woelen |
Speed of C programs, relative to Java
After searching a lot on the internet I think I found a possible answer to my question. It seems tha ... |
12-12-2023 at 07:40
by: woelen |
Speed of C programs, relative to Java
@Keras: I actually am in the process of improving some of the best polynomial root finders available ... |
11-12-2023 at 14:46
by: woelen |
Speed of C programs, relative to Java
No, I do not convert ints to longs. It mostly is floating point (doubles) arithmetic, and a little i ... |
11-12-2023 at 06:12
by: woelen |
Speed of C programs, relative to Java
I am working on a library for polynomial root finding (soon, more will follow on that on sciencemadn ... |
11-12-2023 at 04:20
by: woelen |
shelf live LiALH4
From my own experience I can say that LiAlH4 has unlimited shelf life if it is kept absolutely dry a ... |
7-12-2023 at 02:03
by: woelen |
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