HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 84

hp40g+.book Page 2 Friday, December 9, 2005 1:03 AM Open the Sequence aplet 1. Open the Sequence aplet. Select Sequence Define the expression The Sequence aplet starts in the Symbolic view. 2. Define the Fibonacci sequence, in which each term (after the first two) is the sum of the preceding two terms: U1 = 1 , U2 = 1 ,Un = Un - 1 + Un - 2 for n > 3 . In the Symbolic view of the Sequence aplet, highlight the U1(1) field and begin defining your sequence. 1 1 Note: You can use the , , , , and menu keys to assist in the entry of equations. Specify plot settings 3. In Plot Setup, first set the SEQPLOT option to Stairstep. Reset the default plot settings by clearing the Plot Setup view. SETUP-PLOT CLEAR 8 8 6-2 Sequence aplet