What Does the Caret (^) Operator Do

What does the ^ (caret) symbol do in JavaScript?

The ^ operator is the bitwise XOR operator. To square a value, use Math.pow:

var altura2 = Math.pow($('#ddl_altura').attr("value")/100, 2);

What does the caret (^) operator do?

It's a bitwise XOR (exclusive OR).

It evaluates to True if and only if its arguments differ (one is True, the other is False).

To demonstrate:

>>> 0^0
0
>>> 1^1
0
>>> 1^0
1
>>> 0^1
1

To explain one of your own examples:

>>> 8^3
11

Think about it this way:

1000  # 8 (binary)
0011  # 3 (binary)
----  # APPLY XOR ('vertically')
1011  # result = 11 (binary)

Solidity: What does the caret ^ operator do?

The keyword I left out is "bitwise" (as Nathan mentioned).

So, if, for example,               sha3(valueA)=0x44=0b01000100, and
                                   sha3(valueB)=0x34=0b00110100, then:
(sha3(valueA)=0x44=0b01000100 and sha3(valueB))=0x70=0b01110000

PS
fun fact: XOR with all 1s is a "bit flip"

What does the caret symbol (^) do in JavaScript?

It means bitwise XOR.

EDIT: Fixed link

Meaning and function of ^ (caret) sign in javascript

It is the bitwise XOR operator. From the MDN docs:

[Bitwise XOR] returns a one in each bit position for which the corresponding bits of
either but not both operands are ones.

Where the operands are whatever is on the left or right of the operator.

For example, if we have two bytes:

A 11001100
B 10101010

We end up with

Q 01100110

If a bit in A is set OR a bit in B is set, but NOT both, then the result is a 1, otherwise it is 0.

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In the example you give, it will take the binary representation of the ASCII character code from d.charCodeAt(i) and k.charCodeAt(i) and XOR them. It does the same in Python, C++ and most other languages. It is not to be confused with the exponential operator in maths-related contexts; languages will provide a pow() function or similar. JavaScript for one has Math.pow(base, exponent).

Can someone explain the ^= operator to me?

The carat ^ is bitwise XOR. Imagine it like this:

>>> 8^3
11

---

8 in binary: 1000
3 in binary: 0011
8^3:         1011

What does ^ (caret) mean in Java

It's the bitwise XOR operator. XOR is exclusive or.

6 in binary (lets assume 4 bits) is 0110, 3 in binary is 0011.

So, we get:

0110
0011 XOR
----
0101

And 0101 is 5.

In c# what does the ^ character do?

This is binary XOR operator.

Binary ^ operators are predefined for
the integral types and bool. For
integral types, ^ computes the bitwise
exclusive-OR of its operands. For bool
operands, ^ computes the logical
exclusive-or of its operands; that is,
the result is true if and only if
exactly one of its operands is true.

What does the caret (‘^’) mean in C++/CLI?

This is C++/CLI and the caret is the managed equivalent of a * (pointer) which in C++/CLI terminology is called a 'handle' to a 'reference type' (since you can still have unmanaged pointers).

(Thanks to Aardvark for pointing out the better terminology.)

What is the Prolog operator `^` (caret)?

In Prolog, most symbols can be used 'uninterpreted', at syntactic level, in particular after an op/3 declaration, any atom can be used as operator. Then you can use, for instance, ^/2 as a function constructor for a domain specific language (a DSL), with a semantic specified from your rules.

Is SWI-Prolog (or more generally in ISO Prolog), current_op/3 gives you information about declared operators:

?- current_op(X,Y,^).
X = 200,
Y = xfy. 

That said, any Prolog implementing setof/3 is expected to interpret ^/2 as a quantification specifier, when put to decorate the 2^nd argument. As well, any Prolog implementing is/2 is expected to interpret ^/2 as exponentiation, when occurring on the right side of the is/2 expression.

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