I also have a Platinum HP 15C, a HP 12C, which also has been mostly replaced by spreadsheets for my needs, and some other Swiss Micros calculators. Switch between RPN and algebraic entry-system logic at any time.
#Hp 35s rpn scientific calculator professional
I'm really enjoying the power it has, though I mostly baby it with really simple work compared to what it can do. Get professional performance from the ultimate RPN scientific programmable calculator. And it helps that I also have Free42 on my phone and desktop for when it is impractical to carry extra gadgets. Hewlett Packard HP-35S RPN Scientific Calculator HP35S £247.10 Almost gone + £22.23 postage About this product Product Information The HP 35s scientific calculator provides professional performance for educators and business people by offering a range of highly attractive features combined with an easy-to-navigate interface. Since I never used the HP 41 series, I find the 42 to be really nice. I find the keyboard to be as nice, if not nicer, the display is simply outstanding, and the capability is magnificent. However, once I got my DM42, that replaced the HP 35s for everything. Nothing I ever used for heavier calculations, since like the HP 15C, it has no way to import or export programs or data.
I kept it on my desk when I was doing industrial programming and technical sales for the occasional quick calculation, and it was admirably suited for that. It's really relegated to when I just want to calculate something small, though I often reach for my cellphone and Free42 for that now. RPN is usually more efficient than Algebraic. The bandwith of the interface is just not there for solving large problems with lots of data, though I used to do that in the early 90's. The HP 35s has two operating modes: Reverse Polish Notation. However, it has largely been replaced by tools like NumPy and Gnumeric for when I need more complex solutions these days. The HP 35s was designed by Hewlett-Packard in conjunction with Kinpo Electronics of Taiwan, which manufactures the calculator for HP in mainland China. I started with an HP 15C ages ago, and it remains my handy companion when I am at home and have to do something, or when I work serious math. But since I have several of the calculators in question, I figured my answer might have some use.
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