H value in runge kutta method 2nd order

[Struggling]

hi can anyone explain to me how to get the H value for runge kutta second method? ive searched everywhere online but i just dont understand it.

if found h = tn - to/n??

i know what value of "to" is but no clue what values to put in for n and tn?

thanks

 

[Integral]

If I am interpreting what you are saying correctly, h is your time step, the errors of a 2nd order RK method are on the order of h⁵. It looks to me like your t₀ is the starting time, therefore t_n is the time end point, n is the number of time steps you are taking so your h is the time interval divided by the number of time steps.

for example let:
t₀=0
t_n=100
n=1000

$$h = \frac {t_n - t_0} n = \frac {100 - 0} {1000} = .1$$