sl10

clear
g=9.81
u=input("viscosity..")
ps=2.5*1000
pw=1*1000
d=2e-6
vt=(1/18)*(((ps-pw)*g*d^2)/u);
printf("\nvt..%.8f\n",vt)

->exec('C:\Users\5910110700\Documents\4.sce', -1)

viscosity..0.55555

vt..0.00000001