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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