<span>Here is matlab that should work
% cos(x) = 1 - (x^2)/2! + (x^4)/4! -(x^6)/6!+(x^8)/8!...
% let y= x*x
% cos(x) = sum( (-y)^n/(2n)! )
format short
x= 0.3*pi;
y= x*x;
for N= 1:6
n= 0:N;
s1= [(-y).^n./factorial(2*n) ]
mac= sum(s1);
cx= cos(x);
str= sprintf('%d terms. series: %12.10f cos(x): %12.10f\n %12.10f',...
N, mac,cx, (cx-mac));
disp(str);
end;</span>
Answer:
it depends
Explanation:
if you are hacking for a purpose that is benefiting the person being hacked, that is ethical hacking. ethical hacking is not illegal, as long as you get permission from the person being hacked.
if you hack someone without their knowledge, that is unethical hacking, and that is in many cases, a crime, and if it has enough of a detrimental effect on a companys process, it could land you into prison and earn you a hefty fine.
ethical hacking is good for testing a networks security, and if all is well, the ethical hacker shouldnt be able to get into a network if it is secured properly.
Answer:
When the text contain the ASCII code (Which contains the character) is the correct answer of the above question.
Explanation:
ASCII is used for the Unicode for the computer system. The full form of this is the American standard code of information interchange. It is a code that is used by the computer system for their personal use. It is because no one can hack the information from the system. If anyone can do so then they can get that text which has no mean.
The above question asked about the condition in which Unicode output is the same from plain text. So the answer is ASCII code because the ASCII code and the Unicode are the same. The only difference between them is the representation of bits.
Answer:
Verbatim Identifier
Explanation:
- Verbatim Identifier contains @ symbol as a prefix by which enables you to use reserved words of a programming language as identifier. For example the keywords like int, double, goto, char, else, while, for, float etc can be used as strings or variable names if @ symbol is added before these words e.g. @char, @while, @void, @int etc.
- The compiler of a language will recognize such identifiers as verbatim identifiers and compiles them without giving an error that these are reserved words.
- Verbatim identifier is used for program that is written in other languages and those languages don't have same reserved words.
- For example: cout<<"use of verbatim identifier";<<@for; In this statement, for keyword which is used in for loop can be used as an identifier with @ in the prefix.
- The escape sequences if used with @ symbol in prefix then they are interpreted in a different way. For example in C#
string a = "\\C:\torrent\new\file";
Console.WriteLine(a);
This statement will give the following output:
\C: orrent
ewfile
This means that the \t in the start of torrent and \n in the start of new word is taken as an escape sequence and output displayed is giving tab space because of \t and prints the rest of the words in new line because of \n escape sequence.
Now lets use this with the @ symbol
string a = @"\\C:\torrent\new\file";
Console.WriteLine(a);
The output will now be:
\\C:\torrent\new\file
\t and \n are not taken as escape sequences by the compiler because of @ symbol.
