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Apprentice Joined: 20 Jul 2001 Posts: 127 Location: USA

Is the floating point value going to get any more accurate than it currently is in beta 6.26a?

Currently, it is not going to do me any good because it is just too inaccurate. Here's an example:

#show %eval(2.0+2.1)
results in 4.09999990463257

I don't need a number with so many decimal points. I'm really glad this support has been added, but it needs to be accurate before I can use it in my scripts.

Is there a work around? I don't need so many decimal points. At most, I'll need 3.

What I've been doing, is this:

#var a %replace(2.0,".")
#var b %replace(2.1,".")
#var c %eval(@a+@b)
#var c %concat(%leftback(@c,1),".",%rightback(@c,1))
#show @c

However, this solution only works if I know how many decimal points there are going to be...

MASTER Joined: 28 Nov 2000 Posts: 4817 Location: USA

This belongs in the beta forum.

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Wanderer Joined: 19 Jul 2001 Posts: 59 Location: Germany

#show %format("&10.2f",%eval(2.0+2.1))
displays
4.10

The only other way I can think of right now, is if you need, say, 2 decimals, to multiply all values with 100, and use intergers instead.

Maybe with a user defined function to display them:
#FUNC form {%concat(%if(%1<99,0,%eval(%1/100)),".",%rightback(%eval(%1+100),2))}

Now
#show @form(%eval(200+210))
displays
4.10

and
#show @form(%eval(1+3))
displays
0.04

The integer workaround works in the public version as well.

MASTER Joined: 28 Nov 2000 Posts: 4817 Location: USA

Oh yeah, this isn't accurate enough? It's accurate to 7 decimal places, how much accuracy do you think you need?

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