This collection of examples has been distributed with the Monash University Version of clp(R) [Heintze et al. 87], and its inclusion into this distribution was kindly permitted by Roland Yap.
Assuming you are using clp(R):
clp(r) ?- [library('clpqr/examples/monash/rkf45')].
clp(r) ?- go.
Point 0.00000 : 0.75000 0.00000
Point 0.50000 : 0.61969 0.47793
Point 1.00000 : 0.29417 0.81233
Point 1.50000 : -0.10556 0.95809
Point 2.00000 : -0.49076 0.93977
Point 2.50000 : -0.81440 0.79929
Point 3.00000 : -1.05440 0.57522
Iteration finished
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439 derivative evaluations