Euler method: Difference between revisions

=={{header|Ring}}==

<lang ring>

decimals(3)

see euler("noutput = -0.07*(y-20)", 100, 0, 100, 2) + nl

see euler("noutput = -0.07*(y-20)", 100, 0, 100, 5) + nl

see euler("noutput = -0.07*(y-20)", 100, 0, 100, 10) + nl

func euler df, y, a, b, s

t = a

while t <= b

see "" + t + " " + y + nl

eval(df)

y += s * noutput

t += s

end

return y</lang>

Output:

<pre>

0 100

2 88.800

4 79.168

6 70.884

8 63.761

10 57.634

</pre>