Random: What are you doing right now?

**Xhell** · May 8th, 2005, 07:28 PM

IRT HK: Fantastic! You have a sword too? I myself have got a modest little sword collection (I say sword collection, but they're all katanas) and a little wooden daito to practice techniques with.
It's cool to know someone else shares the appeal with the same hobby ^_^

I'm hoping to soon purchase a dvd which teaches techniques and how to perform particular katas, so as to hone one's own competence with a katana. It comes with a wooden daito with which you can apply the theory and techniques attained from the teaching of the dvd (and this sword I'll give to my little brother so we can fight [img]graemlins/devil.gif[/img] )

**Hell Knight** · May 8th, 2005, 07:32 PM

to tell the truth this one is not a real one, but it looks cool XD My mom won't let me buy a real sword/katana, but I have a real dagger so I can practise the long sword/dagger combo style. I prefer double sword but this is good as well [img]tongue.gif[/img] I like melee weapons [img]tongue.gif[/img] It's good to know others like 'em as well.

**Dreamer7000** · May 8th, 2005, 09:07 PM

I can see it, both works for me too now, web.madritel.es must've been down when I checked, it couldn't be found. Weird Calculator @_@

WOW Raij, it's awesome you have real stuff like that! Altho fighting your brother is not the best idea >_>;;

...

I'm so jealous! Owell.

**Nevan** · May 8th, 2005, 09:50 PM

Just got home from driving around.

**mrwiseman** · May 8th, 2005, 10:24 PM

IRT Raij, Dreamer: I evaluate a PHP expression (like the one in the picture, which adds 104+6, then multiplies it by 4.02, then adds sin(pi/2) which is 1; sin(x) is a trigonometric function, explanation on demand), then present the result in many ways:

Result: The bare result, as given by PHP. Useful for string operations, etc.
Decimal: The result rounded to the nearest integer.
Unsigned 32: Integer result if restricted to 32 bits, and interpreted as an unsigned number even if it's negative. This is computer stuff.
Hexadecimal: Integer result in base 16 (a numbering system that goes: 0, 1, 2, ..., 8, 9, A, B, ..., E, F, 10, 11, ...), useful because it translates more easily to binary (1 digit = 4 bits).
Octal: Integer result in base 8 (another numbering system: 0, 1, ..., 6, 7, 10, 11, ...), like hexadecimal (1 digit = 3 bits).
Binary: The binary result itself. This is what computers actually do for absolutely everything, so it's useful to know. Sometimes you use bits separately and such.
Character: The last 8 bits of the unsigned integer result represent an 8 bits character which can be printed on screen. This is that character.
Float: Floating point is the name of the way computers handle fractional and exponential numbers. This is the result without rounding, interpreted numerically (in case result is a string, like "1.1hello", this would be just 1.1).
Scientific: Normalized floating point number as [-]X.YYY?e?N. e?N in floating point means multiplied by 10 to the NNth power.

This calculator is useful for programmers who need to know a number interpreted in different ways, design bit fields, and similar tasks.

It can also be used in a more spectacular way. This line calculates the sum of all numbers from 1 to 100 (i.e. 1+2+3+4+5+...+99+100)

0;for($i=1;$i＜=100;$x+=$i++) //This is PHP stuff

Of course, I'd be a little foolish if I did that; if you think about it, ∑i for i = x to y step 1 equals to (x + y) * (y - x + 1) / 2 .