HP 17bII manual Equations Used in Chapter, Sxy = Σ, SX 2 × SY, Pv = − Pmt

ΣXi

ΣYi

Let:

X

=

Y

=

n

n

SX 2 = Σ (X

)2

SX 2 = Σ (Y

i

− X

− Y )2

i

SXY = Σ (Xi

− X ) (Yi − Y

)

Then:

M =

SXY

SX 2

B = b for LIN and LOG models, and

B = eb for EXP and PWR models,

where b = Y − M X

CORR

= SXY

SX 2 × SY 2

Equations Used in Chapter 14

Canadian Mortgages

			− (1 + r )	−N 
PV = − PMT		1				− FV (1 + r )−N
			r
					

			CI%YR  16				
where: r =	1	+				−	1
				200 			
							

N = total number of monthly payments

CI%YR = annual interest rate (as a percent)

PV = loan amount

PMT = monthly payment

FV = balloon payment

252 B: More About Calculations

File name : 17BII-Plus-Manual-E-PRINT-030709 Print data : 2003/7/11