why when I use: double x, y; y = pow(1-x, 1.0/3); printf("%lf", y); It turns: -1.IND00 It works right when (1-x) is positive, but if negative - it doesn't work. Cannot understand why...I google it, follow some steps, but it didn't work :/

x is not initialised

why when I use: double x, y; y = pow(1-x, 1.0/3); printf("%lf", y); It turns: -1.IND00 It works right when (1-x) is positive, but if negative - it doesn't work. Cannot understand why...I google it, follow some steps, but it didn't work :/

I know, that's just a piece of my code) I give it some values

From n1570 1 double pow(double x, double y); float powf(float x, float y); long double powl(long double x, long double y); 2 [...] A domain error occurs if x is finite and negative and y is finite and not an integer value. [...]

Return Value The result of raising base to the power exponent. If the base is finite negative and the exponent is finite but not an integer value, it causes a domain error. If both base and exponent are zero, it may also cause a domain error on certain implementations. If base is zero and exponent is negative, it may cause a domain error or a pole error (or none, depending on the library implementation). The function may also cause a range error if the result is too great or too small to be represented by a value of the return type.

So...what I need to use for normal work?... If it doesn't take negative value...

Try use cbrt(1-x)

What language should the data structure be learned in c++ or Java tell me you suggestion ??

Not C++ and unless you have a vendetta against yourself, definitely not Java

Not C++ and unless you have a vendetta against yourself, definitely not Java

So tell me which one language is best for data structures?

So tell me which one language is best for data structures?

why not Java?

From what I saw, Java's GC, object comparison, and other implementation details make a lot of knowledge about data structures in Java not applicable in other languages.

how does a browser make an http request ? what protocol does it use ? by protocol I mean the likes of telnet. Thanks in advance guys

browser supports various of protocols. usually it uses https or http

ikr, how does it send these http requests ?

ikr, how does it send these http requests ?

beginner*

what do you mean "how"? in which context?

for example, one way to send an http request is using telnet protocol, what alternative protocol is used by a browser ?

for example, one way to send an http request is using telnet protocol, what alternative protocol is used by a browser ?

http is based on tcp

not mandated though (e.g. QUIC) From RFC2616 HTTP communication _usually_ takes place over TCP/IP connections. The default port is TCP 80 [19], but other ports can be used. **This does not preclude HTTP from being implemented on top of any other protocol on the Internet, or on other networks.**

So tell me which one language is best for data structures?

we were just talking about a related topic, what happened

fair enough, your question was still pretty vague. A http request is made by sending the payload over the network using the underlying network stack. E.g. that's what libcurl does (C library)

fair enough, your question was still pretty vague. A http request is made by sending the payload over the network using the underlying network stack. E.g. that's what libcurl does (C library)

libcurl is not the whole story. tcp/ip is implemented in kernel, below is data, physical layer. question is extremely vague

Err... Google?

Hmm, you asked me back? What a nice... 😞

I'm a programmer (kinda) but 90% of what I do is searched from Google, I can't even remember how arrays in C# work, every time I want to make an array in C# I search it on Google... because I don't have to keep information in the brain wasting 1000s of neurons when I could use computer memory and internet connection.

I'm sorry, but I don't know what is the websites should I visited 😿

It's called www.google.com search for your problem and you'll get your answers for most of the things.

You make things more difficult 😢

Hmm, okay my brother. But, if I ask what is your favorite website... You will not answer that and tell me to find out by myself. Nice 2 😂

Yeah "OUR" everyone who knows programming favorite site is "www.google.com".

Hmm, okay brother. Thank you 😊

I'm not a brother... I'm a sister...

Your profile photo told that ☺️

That is my son... I'm not 3 years old either.

Hmm, okay my brother. But, if I ask what is your favorite website... You will not answer that and tell me to find out by myself. Nice 2 😂

Here, this is a good site https://isocpp.org/ Especially their FAQs, https://isocpp.org/faq

How to solve this?

ok fyn

Yeah "OUR" everyone who knows programming favorite site is "www.google.com".