Dim Fuel as Double???

[Dayo312]

Im making a lander game..

And Theres a Line..

Private Fuel as Double

Why isnt it a integer??

Whats a double??

thanks!

[Razzle]

double is for numbers with floating decimal point. it's even more precise than single

the max value range of integer is -32768 to 32767 while the single's is -3.402823E38 to -1.401298E-45 and the double's is -1.79769313486232E308 to 4.94065645841247E-657 (negative) and 4.94065645841247E-324 to 1.79769313426232E308 (positive). (single can't be zero but a value very near to zero)

[Edited by Razzle on 05-06-2000 at 06:45 PM]

[Sam Finch]

just in case you want that in english a double is a variable that can store decimals, integers and longs can only store whole numbers.

[Dayo312]

Geezs..lol
Thanks Both of you

your making a game and it was already set as double?
I think you ripped some code off some people
or you wouldnt have even used double if you didnt know what it is....

[Dayo312]

hehe,

good thinking..
I was making the game that is on the
front page of this website.. Called
Lander 3.0. Its really neat.. He used
a ddouble so I asked

why can't a Single variable evaluate to 0?
it doesnt seem to protest when I set it to 0!

[Razzle]

you can set it to zero and if you read it out it's still zero. but the actual value isn't 0 but 0.0000000000...(somewhere at the end there's a number different from zero).
The difference is SO small, you can't see it so easily

[Sam Finch]

How are they stored if you can't set them to zero, I thought they had an exponent and a mantissa, 00000 for the mantissa would give zero wouldn't it.

[kedaman]

I think i had the same problem with double once, multiplying E-12 by 10 up to E0 was differing so little that vb showed 1 but showed x>=1 to be false. So I don't use double for delicate things