John,
you provide no details to go on, but generally the main difference is that
arm64 uses 64-bit precision for long double (which is permitted by the C
standard), while Intel uses 80-bits of precision (on systems that enable it).
That leads to differences in results, e.g. when computing long
Recently I updated my package nlsr and it passed all the usual checks and was
uploaded to CRAN. A few days later I got a message that I should "fix" my
package as it had failed in "M1max" tests.
The "error" was actually a failure in a DIFFERENT package that was used as
an example in a vignette. I
