e--00x numbers?
Blitz3D Forums/Blitz3D Programming/e--00x numbers?
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| Anyone know what these numbers are (im not a mathmatician ;)), what im trying to do load save vertex coordinates to a seperate file for reading later into another program. What I get tho is stuff like: Data 0.023532e-004, 0.0345424e-002 etc what im after is what they are and how to 'convert' them back to the proper values. Anyone have any ideas as its driving me nutts? :) |
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| ;- |
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| If you'd like to convert them to actual numbers then just the number after the 'e' tells you how far to move the decimal to the left. 2.3432e-004 would convert to .00023432 No math wiz here either. Someone smack me with a fish if I remembered that incorrectly. |
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| e stands for exponent the number after the e is the exponent to apply to 10 e-004 = 10^-4 10^-4 = .0001 10^-3 = .001 10^-2 = .01 10^-1 = .1 10^0 = 1 10^1 = 10 10^2 = 100 10^3 = 1000 something like that... exponential notation |
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| why does blitzeven revert to that???? |
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| Well in large part I suspect it is because that is the way floating point numbers are represented logically (a fixed precision number with an exponent). It's also a darn useful thing. 100000000001 is not obviously a different, larger, or smaller number than 1000000000001, whereas: 1.0000e+11 is clearly smaller (oops!) than 1.0000e+12 It may not be the way you're used to writing down numbers, but that doesn't make it inferior. |
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| Not saying its inferior, and you have a valid point. We should prolly all learn this as it would be mighty useful during debuging time... |
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| how I long for double floats (*hint hint*) ;) |
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