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| author | Adrien Hopkins <adrien.p.hopkins@gmail.com> | 2023-09-05 11:37:00 -0500 |
|---|---|---|
| committer | Adrien Hopkins <adrien.p.hopkins@gmail.com> | 2023-09-05 12:58:22 -0500 |
| commit | 8bb4a3b74712b16954b93ae18f4d3dcd5bea063b (patch) | |
| tree | d9b85265e2b8b052d54b4e185b1dd590779a76fa /factor_info.go | |
| parent | ebdc5107b8b2bd69a65a34a6276fc64b84d210ec (diff) | |
Add lower bound estimate for massive MTCs
This can easily be estimated from existing information, so it's useful
to have, even in the compact view.
This estimate is more accurate (narrows the range down further) the
higher the radix's totative ratio. It also should be closer to the
actual value than the upper bound.
Diffstat (limited to 'factor_info.go')
| -rw-r--r-- | factor_info.go | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/factor_info.go b/factor_info.go index c243048..0d0bd40 100644 --- a/factor_info.go +++ b/factor_info.go @@ -98,8 +98,11 @@ func (fi *FactorInfo) WriteTo(w io.Writer) { if fi.MTC != nil { fmt.Fprintln(w, "Multiplication Table Complexity:", *fi.MTC) } else { - fmt.Fprintf(w, "Multiplication Table Complexity ≤ %.4g\n", - float32(fi.Radix)*float32(fi.Radix-2)) + low_mtc_est := float64(fi.Radix)*float64(fi.Totient-2) + high_mtc_est := float64(fi.Radix)*float64(fi.Radix-2) + fmt.Fprintf(w, + "Multiplication Table Complexity is between %.6g and %.6g.\n", + low_mtc_est, high_mtc_est) } fmt.Fprintf(w, "Natural Logarithm: %.3f\n", fi.Ln) if len(fi.DigitMap) > 0 { @@ -116,7 +119,9 @@ func (fi *FactorInfo) WriteToCompact(w io.Writer) { if fi.MTC != nil { fmt.Fprintf(w, "MTC: %d | ", *fi.MTC) } else { - fmt.Fprintf(w, "MTC ≤ %.3g | ", float32(fi.Radix)*float32(fi.Radix-2)) + low_mtc_est := float32(fi.Radix)*float32(fi.Totient-2) + high_mtc_est := float32(fi.Radix)*float32(fi.Radix-2) + fmt.Fprintf(w, "%.4g ≤ MTC ≤ %.4g | ", low_mtc_est, high_mtc_est) } fmt.Fprintf(w, "Ln: %.2f", fi.Ln) fmt.Fprintln(w) |