Recent content by mgscheue

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    Calculators Why is the HP 15C so expensive?

    Also, a very inexpensive option right now, if you just need basic scientific functions (no complex numbers, matrices, and such) is the HP-30b. They can be had for about $20 on Amazon. They're financial calculators but also have trig and log functions. The inverse trig functions are hidden in a...
  2. M

    Calculators Why is the HP 15C so expensive?

    And they're now $100 and in stock on HP's Home and Home Office web site. Fantastic calculator for the price, IMO. This article might explain why it's been in held such high regard for so long. Original HP-15C calculators have been going for serious money so it's nice HP has re-issued it for a...