# Colebrook-White Equation (random) Calculator

## Calculates the table of the root of Colebrook-White Equation with variable data table using Simple and TRUE method. The variable Rr and Rn are generated by random numbers.

 Colebrook-White Equation  mode 2.51 mode 1.74 mode 1.14 mode 9.35 mode 3.71 mode 3.72 initial of random max of row 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit
 $\normal Simple\ and\ TRUE\ method\\[10](1)\ X=-2\log(\frac{Rr}{3.7}+\frac{2.51}{Rn}X)\hspace{20}at\ mode\ 2.51\\(2)\ X_0=3\\\hspace{25} X_{n+1}=-2\log(\frac{Rr}{3.7}+\frac{2.51}{Rn}X_{n})\\$The Simple and TRUE method is provided by Harrell Geron as a Federal NRCS, USDA engineer.
Colebrook-White Equation (random)
 [0-0] / 0 Disp-Num5103050100200
The message is not registered.

Thank you for your questionnaire.
Sending completion

To improve this 'Colebrook-White Equation (random) Calculator', please fill in questionnaire.
Male or Female ?
Male Female
Age
Under 20 years old 20 years old level 30 years old level
40 years old level 50 years old level 60 years old level or over
Occupation
Elementary school/ Junior high-school student
High-school/ University/ Grad student A homemaker An office worker / A public employee
Self-employed people An engineer A teacher / A researcher
A retired person Others
Useful?
Very Useful A little Not at All
Purpose of use?