HP 35s User Manual

 
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HP 35s  Using Register Arithmetic 
 
hp calculators - 3 - HP 35s  Using Register Arithmetic - Version 1.0 
 When ! is pressed, the symbol “A..Z” appears at the top of the screen. This tells the user that the 
next key pressed should be one of the keys with letters A to Z at their lower right, and that the 
corresponding letter will be used. For the letter “M”, press the , key. The number is stored in M, but 
remains on the lower line of the screen, as shown in Figure 1 (which shows...

 
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HP 35s  Using Register Arithmetic 
 
hp calculators - 4 - HP 35s  Using Register Arithmetic - Version 1.0 
Answer: The mass of the Moon is now in register M, the mass of the Earth is in register E, and the mass of the 
Earth-Moon twin system is in register T. The mass of the Earth is also still in the current register, as shown 
in Figure 2. To confirm that the number in register T is the sum of the two masses, view register T by 
pressing: 
  
 45- 
  
 Figure 5 
 
In RPN mode, the...

 
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HP 35s  Using Register Arithmetic 
 
hp calculators - 5 - HP 35s  Using Register Arithmetic - Version 1.0 
apart from this, many users find that storage register arithmetic has important applications in programs. There are three 
reasons for this. 
  
(1) Each STO or RCL instruction takes one less step in a program than STO or RCL followed by a separate 
arithmetic command. Saving a step in a program makes it shorter, faster and easier to read. 
   
(2) STO arithmetic does not use the...

 
 
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HP 35s  Using the built-in constants 
 
 
 
 
 
 
 
The built-in constants 
 
Practice using the built-in constants 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   

 
hp calculators 
 
HP 35S  Using the built-in constants 
 
hp calculators - 2 - HP 35S  Using the built-in constants - Version 1.0 
The built-in constants 
 
The HP 35s includes 41 physics constants built into the ! menu. These constants remove the need to keep a 
table of frequently used constants handy or to look them up in a reference manual. These constants can be used when 
doing calculations in run mode, within a program, or within an equation. The 41 constants included are: 
 
Speed of light in...

 
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HP 35S  Using the built-in constants 
 
hp calculators - 3 - HP 35S  Using the built-in constants - Version 1.0 
 The second page looks like this. To move from one page to the next, you can press # to move down a 
page or $ to move up a page. 
 
 Figure 2 
  
 In RPN mode, press: !#%%!#% 
 
 Figure 3 
 
 The display is now showing the two mass values. Press ( to compute the ratio. 
 
 Figure 4 
 
 In algebraic mode, press: !#%%(!#% 
 
 Figure 5 
 
Answer:  The proton is approximately...

 
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HP 35S  Using the built-in constants 
 
hp calculators - 4 - HP 35S  Using the built-in constants - Version 1.0 
e space probe’s speed to miles per second. 
4,****(-*(-* 
  the number of times faster the probe would have to travel to reach 10% of the speed of light 
by pressing: 
  
 Now convert th
  
 
 
Now compute
 
 Figure 6 
Answer
 
:  er than its present speed to reach 10% of 
the speed of light. Figure 6 shows the result in algebraic mode. 
 
The space probe would have to...

 
 
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HP 35s  Averages and standard deviations 
 
 
 
 
Averages and standard deviations 
 
Practice solving problems involving averages and  
standard deviations 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   

 
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HP 35s  Averages and standard deviations 
 
hp calculators - 2 - HP 35s  Averages and standard deviations - Version 1.0 
Averages and standard deviations 
 
The average is defined as the sum of all data points divided by the number of data points included. It is a measure of 
central tendency and is the most commonly used. A standard deviation is a measure of dispersion around a central 
value. To compute the standard deviation, the sum of the squared differences between each...