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Path: utzoo!watmath!clyde!cbosgd!ihnp4!alberta!cavell!mouli
From: mouli@cavell.UUCP (Bopsi Chandramouli)
Newsgroups: net.puzzle
Subject: More on Interview Questions.
Message-ID: <379@cavell.UUCP>
Date: Thu, 14-Mar-85 01:00:58 EST
Article-I.D.: cavell.379
Posted: Thu Mar 14 01:00:58 1985
Date-Received: Sat, 16-Mar-85 01:40:39 EST
Distribution: net
Organization: U. of Alberta, Edmonton, AB
Lines: 25


Here are two more 'good' interview questions. Actually I was asked
the first question in a job interview.

1) Hope you agree that

              x**2 = x + x + x + ... x such terms. 

   Then consider these two derivatives.

              d(x**2)
             ----     = 2*x.
              dx

              d(x + x + x + x .. x such terms)
             ____                              = 1 + 1 + 1 + 1 .. x such terms
              dx
                      = x.

   Why is this anamoly?

 2) what is the derivative of factorial x?

Bopsi Chandramouli.
ihnp4!alberta!cavell!mouli.