I am going to program Eulers method in Octave to approximate gravity in 1-dimension. I understand the formula for Eulers method, which is equal to: y_(i+1)=y_i+(triangle t*f(t_i.y_i)) What I don't understand is what my function f(t,y) is in this case. What do I have to insert into the formula to get my next y-point?

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A)True;
B)False

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Air
Oil
Water
Brick

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