Andrew de la Torre, an analyst from upstate New York, surprised me on the

Andrew de la Torre, an analyst from upstate New York, surprised me on the
long flight to the US yesterday. He was my student in UP Diliman over 35 years ago. He kept his notes from that class for many years, learning what P.I. 100 stands for.
I’m grateful that many former students remember our class with affection.



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