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by: Carl |
last post by:
I have been using Python for quite some time now and I love it. I use it
mainly for explorative computing and numerical prototyping, ie testing and
trying out different kinds of algorithms and computational schemes. The use
of Python as my first-choice language has made me extremely productive.
Now, I have always believed that Python is a poor performer in terms of
numerical speed. My experience, however, is that the efficient use of...
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by: Jonas Smithson |
last post by:
I recently read the claim somewhere that numerical entities (such as
—) have a speed advantage over the equivalent named entities
(such as —) because the numerical entity requires just a single
byte to be downloaded to the browser, while the named entity requires
one byte for each letter. (So in this case, it would presumably be one
byte vs. seven bytes.) I found this claim a little surprising -- I
would have thought *each* numeral...
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by: Mark Kolber |
last post by:
I have a table in a database that contains a text field. The text
field contains identifiers that consist of 7 alphanumeric characters,
such as GORKY, 99SST, and PT10A.
I am trying to run a query that will only display those identifiers
that have no numerical characters, so that, from the examples above,
only GORKY will show.
I apologize is this is an often-repeted request. I searched Google and
Google Groups, but couldn't seem to...
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by: mplogue |
last post by:
I'm trying to build a function that reads each character in a string
and converts it to an ASCII numerical value. So far, so good.
However, I'm running into problems when dealing with quotation marks.
Using ASC(""") dosen't work, neither does ASC('"') or just ASC(").
Is there any other way to handle this? Is this the only character I'll
have this problem with, so should I just error trap it?
Thanks!
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by: Marc Scheuner [MVP ADSI] |
last post by:
Folks,
I need to try and make sure that a given string is a valid numerical
value (not just int, or int32 - it could be float, decimal, what have
you). VB.NET has a neat "IsNumeric" function - too bad C# doesn't have
anything similar. Or does it??
I was thinking about trying to convert the string to Int32, but as I
mentioned - that alone won't be good enough, and I really don't want
to attempt a dozen conversions to find out - nor do...
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by: Martin Jørgensen |
last post by:
Hi,
I've made a program from numerical recipes. Looks like I'm not allowed
to distribute the source code from numerical recipes but it shouldn't
even be necessary to do that.
My problem is that I'm not very experienced with pointers, pointers to
pointers and the like and I got 4 compiler warnings + I don't completely
understand how to build this "compact matrix" (see later).
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by: Abhi |
last post by:
Hi..
I wanted the C source code in machine readable format for the book
"Numerical Recipes in C".
I got hold of the pdf version of the book somehow. Does anyone have the
complete C code of the book?. If yes,..can you please mail me the code
or somehow share it with me?.
With Regards,
Abhishek S
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by: farah727rash |
last post by:
Hi all,
I am trying to find the numerical value of a string that stores a two digit number. I have found the numerical value of a char as:
char character;
cin >> character;
int number = character - 48; // Computing the numberical value of character entered
cout << "The number you entered is: " << number << endl << endl;
How do I do the same and find the numerical value of a string storing 2 digits? I know a way to do this using...
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by: farah727rash |
last post by:
Hi all,
I am trying to find the numerical value of a string that stores a two
digit number. I have found the numerical value of a char as:
char character;
cin >character;
int number = character - 48; // Computing the numberical value of
character entered
cout << "The number you entered is: " << number << endl << endl;
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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