HP 35s Scientific ÕÕÕ, G-3, ÕÕÕÕ, ÕÕÕÕÕ, ÕÕÕ(σ), ∑(xi − x)2 ⎟ n, ∑(yi − y)2 ⎟ n, Name, Page, Operation Index G-3, Keys and Description

Name	Keys and Description				Page
Σx2	ÕÕÕ()				12–11	1
	Returns the sum of squares of x–
	values.
Σxy	ÕÕÕÕÕ				12–11	1
	()
	Returns the sum of products of x–and
	y–values.
Σy	ÕÕ()				12–11	1
	Returns the sum of y–values.
Σ 2	ÕÕÕÕ	(		)	12–11	1
y
	Returns the sum of squares of y–
	values.
σx	ÕÕ(σ)				12–7	1
	Returns population standard
	deviation of x–values:
	∑(xi − x)2 ⎟ n
σy	ÕÕÕ(σ)				12–7	1
	Returns population standard
	deviation of y–values:
	∑(yi − y)2 ⎟ n
∫ FN d variable	( ∫   _) variable				8–2
	Integrates the displayed equation or				15–7
	the program selected by FN=, using
	lower limit of the variable of
	integration in the Y–register and
	upper limit of the variable of
	integration in the X–register.
( )	4parenthesis. press Õto leave				6–6	1
	the parenthesis for further
	calculation.
[ ]	3: A vector symbol for				10–1	1
	performing vector operations
θ	?: A complex number symbol				9–1	1
	for performing complex number
	operations

Operation Index G-3