Calculators Graphing ODE Integral Curves on the TI-89

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To graph integral curves and slope fields of ordinary differential equations (ODEs) on the TI-89 calculator, users can navigate to the MODE menu, select Graph, and then choose Differential Equations. An example provided is entering the equation y1' = 5t along with an initial condition, such as y1(1) = 1. Additionally, users can solve ODEs directly using the desolve function, as demonstrated with the equation y'' = (-g/l)y'. The initial condition (Yi1) is specified to define the starting point for the graphing of the solution.
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Does anyone know how to graph the integral curves / slope fields of ODEs on the 89? I don't have a manual for mine, and suppose a few of you are quite familiar with it.

Thanks in advance.
 
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MODE=>Graph=>Diff Equations
DIAMOND=>F1
y1'=5t
yi1=1

or you can just solve for the equation directly like this:

desolve(y''=(-g/l)y',t,y)
 
What is the Yi1 for?

Thanks for the response.
 
Y intial condition 1
 
Alright sounds good. I appreciate it dduardo.
 

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