CODEWITHSUNDEEP
matlab
ksbiefr
ksbiefr

Reputation: 63

Calculating time of simulation

I am doing simulations for 

time step = 1.0 e^-7  &
total number of steps ==> nsteps = 1.0 e^8

I have to find the total time of simulation at which n# steps is achieved. Is it ok to multiply both to get the time of simulation? 

time of simulation = time step * total number of steps
time of simulation =   1.0 e^-7 * 1.0 e^8
time of simulation =  10

Is this right or wrong? Thanks in advance.

Upvotes: 1

Views: 177

Answers (1)

Stewie Griffin
Stewie Griffin

Reputation: 14939

This is a yes/no question, so:

No, (or yes, depending on how accurately you want the answer to be)!

But you are really close... You need to subtract one time_step, thus the answer is really:

time_of_simulation = time_step * total_number_of_steps - time_step;

You will see the reason if you consider counting seconds. Start with a number and see how far you get if you count one second at a time.

1, 2, 3 => Three measurements, but only 2 seconds.

However, in your case, I guess you are close enough without the last subtraction, because

time of simulation = 9.999999 is pretty close to 10

Upvotes: 2

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