Wrote

Is this supposed to take over 5 minutes to calculate?May be SMath as this is the second sheet today that "locks-up" with the calculation tool bas and the timer running[/quote

Re-download in case something got wrong in the transmission.
XP Home, 1.8 GHz, Smath 5346 OFFicial release => 5 seconds

Jean

Inst_Viscosity Water.sm (52 КиБ) скачан 110 раз(а).

Would be interesting more collabs test the timing, thanks.