private formula
maxima eficiencia en canales trapezoidales por manning
Formula has warnings so can not be used - press "edit" below in order to fix.
| Q | caudal (dimensionless) |
| n | coeficiente de manning (dimensionless) |
| b | (dimensionless) |
| y | altura (dimensionless) |
| s | pendiente (dimensionless) |