From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Keith McKay <mckaymeister@gmail.com>
Subject: Re: Arithmetic Overflow error in MetaFun
Date: Sat, 16 May 2020 16:50:13 +0200 [thread overview]
Message-ID: <c9743a71-9c8d-47b5-56c8-b340fdbc6736@xs4all.nl> (raw)
In-Reply-To: <4830f0a0-ece9-53ce-2768-af9110f3962a@gmail.com>
On 5/16/2020 4:36 PM, Keith McKay wrote:
> Colleagues
>
> I'm having problems with an Arithmetic Overflow error when calculating
> the x and y values for functions of the form:
>
> y = ax^4 + bx^3 + cx^2 + dx + e
>
> to which I then add a bit of randomness and other embellishments. I have
> had a look in the Metafun and Metafont manuals but nothing jumps out at
> me. In the minimum working example below, this Arithmetic Overflow
> occurs when xord =13.5 but I can get the calculation to work if I
> separate out the equation and then add together, since it seems to be
> failing on the pow(xord,4) instruction. Is there a switch in MetaFont
> that should be set or a better way of getting round this Arithmetic
> Overflow error?
\startMPpage[instance=doublefun]
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prev parent reply other threads:[~2020-05-16 14:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-16 14:36 Keith McKay
2020-05-16 14:48 ` Keith McKay
2020-05-16 19:46 ` Hans Hagen
2020-05-17 8:19 ` Keith McKay
2020-05-16 14:50 ` Hans Hagen [this message]
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