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Hp 35s manual download.HP 35s User's Guide
The expression can be edited using the arrow and backspace keys, and re-evaluated as desired. To facilitate those who still use traditional units, and for other uses, the calculator also allows the entry of values as mixed fractions and the display of values as mixed fractions.
Entry of mixed fractions involves using decimal points to separate the parts. For example, the sequence 3. The calculator may be set to automatically display values as mixed fractions by toggling the FDISP key.
Numbered flags may be set to specify which of three denominator systems is to be used: most precise denominator, factors of the maximum for example 2, 4, 8, 16, when the maximum is 16 , or a fixed denominator. Two small arrow symbols on the display indicate if the actual value is slightly above or below that displayed.
There are no functions to directly extract the parts of the displayed fraction. Previous and other current HP calculators have handled complex numbers in a variety of ways.
In the HP 33s, complex numbers were stored as two separate values, and the "complex" modifier was used to indicate that an operation was to treat the stack as containing complex numbers. The 35s stores complex numbers as single values, which can then be operated on in the standard ways.
On the 35s, the number of functions able to handle complex numbers is limited and somewhat arbitrary. For example, directly taking the square root of a negative real number results in an error message instead of a complex number. However raising x to the power of 0. Base- e natural logarithms and exponentiation can be used, but not base However, workarounds exist for many of those limitations. The 35s provides facilities for handling vectors of up to three real-number elements.
It is entered by the user starting with a square bracket [ , then the element values separated by commas ,. Vectors can be added, subtracted, multiplied and divided by scalars. Two vectors of similar dimensions may be added and subtracted, and multiplied to give their dot product. The ABS function will return a vector's magnitude. A cross-product function is not available, nor any function to extract individual elements from a vector, but these can be readily calculated by the user.
Vectors can also be used to simply store up to three real numbers together, thereby increasing the calculator's storage capacity, though with more complexity and reduced speed. HP have published program code for the 35s which enables this.
The calculator can be set to display values in binary, octal, or hexadecimal form, as well as the default decimal. When a non-decimal base is selected, calculation results are truncated to integers. Regardless of which display base is set, non-decimal numbers must be entered with a suffix indicating their base, which involves three or more extra keystrokes. When hexadecimal is selected, the row of six keys normally used for floating-point functions trigonometry, logarithms, exponentiation, etc.
In non-decimal bases, the word length is fixed at 36 bits, and uses two's complement negation. The 35s's statistics capabilities are fairly standard. It can process a set of one-variable or two-variable statistics. Calculated results include means , weighted mean , standard deviation , and linear regression figures. The summation registers are also accessible for further calculations. Probability functions combinations and permutations are available, as well as random numbers.
Because flags are especially useful in programs, their use is covered in detail in chapter How wide is each section, assuming you can conveniently measure inch increments? What's the cumulative roundoff error? Page Fractions In Programs Fractions in Programs You can use a fraction in a program just as you can in an equation; numerical values are shown in their entered form. When you're running a program, displayed values are shown using Fraction— display mode if it's active.
This list is visible whenever you activate Equation mode. You use certain keys to perform operations involving equations. They're described in more detail later. When displaying equations in the equation list, two equations are displayed at a time. You can use each variable as many times as you want. To enter a variable in an equation, press A.. Z annunciator shows that you can press a variable key to enter its name in the Appendix G, "Operation Index," also gives this information.
When you enter an equation, you enter functions in about the same way you put Page Parentheses In Equations Parentheses in Equations You can include parentheses in equations to control the order in which operations are performed. Press "Operator Precedence" later in this chapter.
Example: Entering an Equation. This activates Equation mode and turns on the EQN annunciator. The current equation the last equation you viewed. You can also edit or clear equations saved in the equation list. For example, x Assignments. The value is a measure of how well the equation balances. Page Using Enter For Evaluation 2.
Press needed. If the base of a number in the equation is different from the current base, the calculator automatically changes the result to the current base. For each prompt, enter the desired value: If the displayed value is good, press If you want a different value, type the value and press "Responding to Equation Prompts" Page Using Xeq For Evaluation If the equation is an assignment, only the right—hand side is evaluated.
The result is returned to the X—register and stored in the left—hand variable, then the variable is viewed in the display.
Essentially, the left—hand variable. If the equation is an equality or expression, the entire equation is evaluated — Use the results from the previous example to find out how much the volume of the pipe changes if the diameter is changed to Page The Syntax Of Equations To change the number, type the new number and press number writes over the old value in the X—register.
You can enter a number as a fraction if you want. Page Equation Functions Equation Functions The following table lists the functions that are valid in equations.
Appendix G, "Operation Index" also gives this information. Page The following equation calculates the perimeter of a trapezoid. Page Single letter name The next equation also obeys the syntax rules. Page Syntax Errors You have to edit the equation to correct the error. See "Editing and Clearing Equations" earlier in this chapter. By not checking equation syntax until evaluation, the HP 35s lets you create "equations" that might actually be messages.
This is especially useful in programs, as described in chapter Display equation's checksum and length. Redisplays the equation. Leaves Equation mode. For example, consider the equation — Page D-value which should be zero.
Since Equation mode is turned on and the desired equation is already in the display, you can start solving for D: Keys Page A 2—liter bottle contains 0. Assuming that the gas behaves as an ideal gas, calculate its pressure. The result will be saved in variables x, y, and z. The calculator can detect cases with infinitely many solutions or no solutions.
Page Understanding And Controlling Solve Some equations are more difficult to solve than others. In some cases, you need to enter initial guesses in order to find a solution. Page If such is the case, the calculator changes one guess slightly so that it has two different guesses. Entering your own guesses has the following advantages: By narrowing the range of search, guesses can reduce the time to find a solution.
Using a rectangular piece of sheet metal 40 cm by 80 cm, form an open—top box having a volume of cm amount to be folded up along each of the four sides that gives the specified volume. Because the taller box is preferred, larger initial estimates of the height are reasonable.
However, heights greater than 20 cm are not physically possible because the metal sheet is only 40 cm wide. Page For More Information The dimensions of the desired box are 50 15 cm.
If you ignored the upper limit on the height 20 cm and used initial estimates of 30 and 40 cm, you would obtain a height of If you used small initial estimates such as 0 and 10 cm, you would obtain a height of 2. Page Integrating Equations Integrating Equations Many problems in mathematics, science, and engineering require calculating the definite integral of a function.
Select the variable of integration: Press calculation. Page Example: Bessel Function. The Bessel function of the first kind of order 0 can be expressed as Find the Bessel function for x—values of 2 and 3. You must re-specify the limits of integration 0, since they were pushed off the stack by the subsequent division by. However, the integration algorithm normally does not evaluate functions at either limit of integration, unless the endpoints of the interval of integration are extremely close together or the number of sample points is extremely large.
Page Accuracy Of Integration and the greater the time required to calculate it. The fewer the number of digits displayed, the faster the calculation, but the calculator will presume that the function is accurate to the only number of digits specified. Page Example: Specifying Accuracy. With the display format set to SCI 2, calculate the integral in the expression for Si 2 from the previous example.
Since the uncertainty would not affect the approximation until its third decimal place, you can consider all the displayed digits in this approximation to be accurate. Appendix E contains more detailed information about how the algorithm for integration works, conditions that could cause incorrect results and conditions that prolong calculation time, and obtaining the current approximation to an integral.
In RPN mode, the complex number occupying part 1 and part 2 of the X-register is displayed in line 2, while the complex number occupying part 1 and part 2 of the Y-register is displayed in line 1. These forms use pairs of numbers, as do complex numbers, so you can do arithmetic with these numbers by using the complex operations. When an equation is displayed, all numeric forms are shown as they were entered, like xiy, or r a When you evaluate an equation and are prompted for variable values, you may enter complex numbers.
The HP 35s cannot handle vectors with more than 3 dimensions. Vector operations Addition and subtraction: The addition and subtraction of vectors require that two vector operands have the same length. Page Calculate [1. A vector can be entered when prompted for a variable.
Equations containing vectors can be solved, however the solver has limited ability if the unknown is a vector. Page Creating Vectors From Variables Or Registers Creating Vectors from Variables or Registers It is possible to create vectors containing the contents of memory variables, stack registers, or values from the indirect registers, in run or program modes.
Page Base Conversions And Arithmetic And Logic allows you to enter numbers and force the display of provides access to logic functions.
This is the normal calculator mode Hexadecimal mode. Numbers are displayed in hexadecimal format. Page The result of an operation is always an integer any fractional portion is truncated. Whereas conversions change only the display of the number but not the actual number in the X—register, arithmetic does alter the number in the X—register. Page Windows For Long Binary Numbers Equations and program are affected by the base setting and binary, octal and hexadecimal numbers can be entered in equation and in program as well as when the calculator prompts for a variable.
Results will be displayed according to the current base. Page Statistical Operations Statistical Operations The statistics menus in the HP 35s provide functions to statistically analyze a set of one— or two—variable data real numbers : Mean, sample and population standard deviations. Linear regression and linear estimation Weighted mean x weighted by y. For this reason, the calculator will perform linear regression and show you values based on y even when you have entered only x—data — or even if you have entered an unequal number of x—and y—values.
After deleting the incorrect statistical data, calculator will display the value of Y-register in line 1 and value of n in line 2. Example: Key in the x, y—values on the left, then make the corrections shown on the right Page Example: Mean One Variable.
Production supervisor May Kitt wants to determine the average time that a certain process takes. She randomly picks six people, observes each one as he or she carries out the process, and records the time required in minutes : Page Population Standard Deviation Population Standard Deviation Population standard deviation is a measure of how dispersed the data values are about the mean.
Population standard deviation assumes the data constitutes the complete set of data, and is calculated using n as a divisor. Here are two examples: Normalizing Close, Large Numbers The calculator might be unable to correctly calculate the standard deviation and linear regression for a variable whose data values differ by a relatively small amount. Page Summation Values And The Statistics Registers — values that are of interest when performing other statistical calculations in addition to those provided by the calculator.
If you've entered statistical data, you can see the contents of the statistics registers. Summation registers should be referred to by names and not by numbers in expression, equations and programs. Page Statistical Operations Page Part 2. Programming Part 2 Programming Page Simple Programming Simple Programming Part 1 of this manual introduced you to functions and operations that you can use manually, that is, by pressing a key for each individual operation.
And you saw how you can use equations to repeat calculations without doing all of the keystrokes each time. It computes the area and leaves it in the X—register. Using ALG operations as explained in appendix C. Using equations as explained in chapter 6. The previous example used a series of RPN operations to calculate the area of the circle. To record calculator operations as program instructions, press the same keys you would to do an operation manually. Remember that many functions don't appear on the keyboard but must be accessed using menus.
Example: Entering a Program with an Equation. The following program calculates the area of a circle using an equation, rather than using RPN operations like the previous program. Page Testing A Program Testing a Program If you know there is an error in a program, but are not sure where the error is, then a good way to test the program is by stepwise execution.
It is also a good idea to test a long or complicated program before relying on it. Variables, as explained in chapter 3, are identified by a letter from A through Z, but the variable names have nothing to do with program labels. Page 2. In the beginning of the program, insert an INPUT instruction for each variable whose value you will need.
Later in the program, when you write the part of the calculation that needs a given value, insert a that value back into the stack.
If you press clears the number to zero. This means you can enter almost any sequence of characters into a program as an equation — you enter it just as you enter any equation. On any program line, press the equation. Page Displaying Information Without Stopping Now find the volume and surface area—of a cylinder with a radius of 2 a height of 8 cm.
This will display the contents of the X-register and halt a running program until you resume it by pressing RTN in order to end a program without returning the program pointer to the top of memory. Page Editing A Program Editing a Program You can modify a program in program memory by inserting, deleting, and editing program lines. If a program line contains an equation, you can edit the equation. To delete a program line: 1. Select the relevant program or routine and press program line that must be changed.
When Program—entry mode is active, the contents of program memory are displayed. The list of program lines is circular, so you can wrap the program pointer from the bottom to the top and reverse. Page Memory Usage You can make more room available by clearing programs or other data. The Catalog of Programs MEM The catalog of programs is a list of all program labels with the number of bytes of memory used by each label and the lines associated with it.
Page Clearing One Or More Programs If the known checksum and the one shown by your calculator are the same, then you have correctly entered all the lines of the program. Page Nonprogrammable Functions In addition, each equation in a program has a checksum.
See "To enter an equation in a program line" earlier in this chapter. Video Audio icon An illustration of an audio speaker. Audio Software icon An illustration of a 3. Software Images icon An illustration of two photographs. Images Donate icon An illustration of a heart shape Donate Ellipses icon An illustration of text ellipses.
Metropolitan Museum Cleveland Museum of Art. This manual is available in the following languages: English. Do you have a question about the HP 35s or do you need help? Ask your question here. Do you have a question about the HP and the answer is not in the manual? Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP owners to provide you with a good answer.
How do you reset calculator? I seldom use the computer and the calculator at the same time, or in the same place. How do I download the entire user manual, so that I can print off a copy for myself? What does hex mean on the screen and how do I get rid of it as the calculator is blocked while it is displayed.
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