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Buy.com has the 35S



#9

buy.com link


#10

According to the inflation calculator $395 in 1972 had the same buying power as $1,965.07 today. Has anyone noticed $54.99 is about 1/35th of the original HP-35 price?


#11

Gerson,

That online calculator assumes an inflation rate of 4.7%, which seems rather high. Maybe I am wrong but in many Time Value of Money calculations, the assumed inflation rate is closer to 2.5% - 3%. This puts the buying power between $937 and $1,111. Either way, it's a good deal, comparatively speaking.

Regards,

Jeff


#12

Hello Jeff,

On the HP-19BII I wrote the equation FV=PVx(1+I/100)^(N-1) and solved for I (PV=395, N=36 and FV=1,965.07). Indeed the average inflation rate is about 4.7% (4.690681415). It really looks high considering the avarege yearly American inflation, but other inflation calculators I checked gave similar results. Was inflation a little higher some years ago? In 1989 here (Brazil) we had about 80% in a month!, but you cannot imagine what was that like :-)



(I am sure there's no need to write any equation to solve this on a financial calculator, but I have yet to read - and understand - the manual.)

Regards,

Gerson.


#13

During the mid to late 1980's the inflation over here was massive. I think double digits but I'm not certain. Mortages went close to 20%.

- Pauli


#14

Even before that(1976), here in the USA during the Carter administration, U.S.Treasury bills were earning 14%!

tm

#15

Quote:
During the mid to late 1980's the inflation over here was massive. I think double digits but I'm not certain. Mortages went close to 20%.

You are off by a decade, if you are in the USA.

Inflation in the USA in the late 1970s averaged over 10 percent each year from 1977 to 1980. It was nearly 14 percent in 1979 alone. Inflation during the 1980s averaged well under 5 percent annually.

When a none-too-wealthy friend of mine at Ga. Tech bought an HP-45 new in 1973, I told him that he could have bought a decent used car (which he didn't have) for that. The HP-65 cost the equivalent of almost $4000 in today's dollars.

As an old geezer who was a university sophomore in EE when the original HP-35 first arrived at the Ga. Tech bookstore, let me assure all here that a five-fold inflation rate very accurately characterizes the total inflation that has occurred in the USA since 1972.

Mike

#16

Free postage with that, and an extra $10 off if you use Google Checkout for the first time. That makes it $45 delivered for you US folk.

Too bad they don't ship to Australia.

Dave.


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