need an algrithm

[tmcgee94]

Need an algorithm to approximate the traveling time for a trip. For a shorter trip, under 120 miles time is based on miles, more than 120 miles it is adjusted by 10%

[insane_alien]

time = distance/ speed

[khaled]

Need an algorithm to approximate the traveling time for a trip. For a shorter trip, under 120 miles time is based on miles, more than 120 miles it is adjusted by 10%

 

define "adjusted by 10%", is it that 10% is an error ?

[insane_alien]

safety margin. the longer a journey, the more likely you will encounter delays

[khaled]

the algorithm is simple then,

 

IF [math]DISTANCE < 120[/math] THEN [math]TIME = \frac{DISTANCE}{SPEED}[/math]

 

ELSE [math]TIME = [ \frac{DISTANCE}{SPEED} - \epsilon \; , \; \frac{DISTANCE}{SPEED} + \epsilon ][/math] END

 

.. where [math]\epsilon \; = \; 0.1 \times \frac{DISTANCE}{SPEED}[/math],

Edited October 5, 2011 by khaled

[Faz]

Just curious here. Why only include the 10% safety margin for trips longer than 2 hours? The margin for error should apply for any distance.