What does this script do?

[Wow]

var abc=64; document.write(abc^2);
then it display 66

var abc=66; document.write(abc^2);
then it displays 64

What is the ^2 ? 66^2=4365
not 64. even I mod 128 or 256, I got 4, not 64

[Andy]

> What is the ^2 ?

^ is raise to the power of.

64^2 is the same as 64*64 which = 4365

2^8 = 256 (2*2*2*2*2*2*2*2)

[Andrew Thompson]

On Sun, 25 Jul 2004 08:11:22 GMT, Andy wrote:

What is the ^2 ? 66^2=4365

No.. 4356
^ is raise to the power of.

64^2 is the same as 64*64 which = 4365

and ..4096

--
Andrew Thompson
http://www.PhySci.org/ Open-source software suite
http://www.PhySci.org/codes/ Web & IT Help
http://www.1point1C.org/ Science & Technology

[Andy]

"Andrew Thompson" wrote

No.. 4356 and and ..4096

Why the hell did I type the wrong answers in? It is plainly 4356 and 4096
so why on earth did I type 4365 twice?

Going mad.

[Lasse Reichstein Nielsen]

"Wow" <[e-mail]> writes:

var abc=64; document.write(abc^2);
then it display 66

var abc=66; document.write(abc^2);
then it displays 64

What is the ^2 ?
Read some Javascript manual. E.g.:
<URL:http://devedge.netscape.com/library/manuals/2000/javascript/1.3/reference/ops.html>

The "^" operator is the bitwise exclusive or operator. So, writing
62 and 2 as binary,
01000000 = 64
^ 00000010 = 2
--------
= 01000010 = 66
66^2=4365

That would be an exponetiation operator. There isn't one in Javascript,
you must use Math.pow(66,2) for that.

/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
DHTML Death Colors: <URL:http://www.infimum.dk/HTML/rasterTriangleDOM.html>
'Faith without judgement merely degrades the spirit divine.'

[Andrew Thompson]

On Sun, 25 Jul 2004 09:50:46 GMT, Andy wrote:

Going mad.

(chuckles) Notwithstanding of course, L.R.N.s
comment they were bitwise operators ..oops!

I was wondering vaguely whether the OP
was refering to an exponent or 'some
...bit operation' in that expression, but
noted the square of an even number should
be even.., then when you requoted the same
number as the square of 64, I jumped in and
the rest, as they say, is history.

Wait 24hrs, read back on it, and be amused. ;-)

--
Andrew Thompson
http://www.PhySci.org/ Open-source software suite
http://www.PhySci.org/codes/ Web & IT Help
http://www.1point1C.org/ Science & Technology

[Wow]

> > var abc=64; document.write(abc^2);

then it display 66

var abc=66; document.write(abc^2);
then it displays 64

What is the ^2 ?
Read some Javascript manual. E.g.:

<URL:http://devedge.netscape.com/library/...pt/1.3/referen
ce/ops.html>
The "^" operator is the bitwise exclusive or operator. So, writing
62 and 2 as binary,
01000000 = 64
^ 00000010 = 2
--------
= 01000010 = 66

66^2=4365

That would be an exponetiation operator. There isn't one in Javascript,
you must use Math.pow(66,2) for that.

YOU ARE THE MAN!!!!