HP50g equation writer

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• HP 50 g equation writer

  can someone help me please whenever I try to write an equation into the equation writer beggening with a negative number, nothing happens

  FOR EXAMPLE

  redshift > EQW >-> 5 > + > 2

  the result would be 5 + 2

  nothing happens when I press the button "-" before the 5th

  Hello

  To enter a negative number, use the +/-key (key no. 7 above).

  I hope this helps.

  .

• HP50G equations w / complex real Vars & solve for reports of Vars

  Hi guys. I have 2 questions.
  
  1. given an equation with a variable complex and variable real in it, I want to solve for both variables. Here is an example
  
  Given:
  ∠120 has° + jb =-4 + j3
  
  Solve for A and b.
  
  Answer:
  
  A = 8
  b = -3.93

  I know it's possible to solve by hand because A is true and b is complex. But I don't know how to do this on the HP50G because the equation has two variables inside.

  2 it will probably be a bit more complicated. Saw 2 symbolic equations, I want to solve for the report of two variables with respect to the other variables. Here is an example.
  
  Given:
  
  (X Z) / Q + (X - Y) / (X - Y) + R / Q = 0
  / Q (X - Y) = Y/R
  
  Solve for Y/Z depending on X, Q and R
  
  Answer:
  Y/Z = [/(Q+R) R] ^ 2

  I'd be very impressed if anyone can understand these out or already knows how do the following.
  
  Thanks in advance!

  Hello

  (1) :

  It's my approach:

  Settings of the calculator:

  -angle mode: radians (required for the Solver)

  -coord system: rectangular (my choice as it fits x + y * i).

  -Digital and about unchecked

  -operating mode: RPN

  -Flag-27 value complex display that x + y * I

  First angle must be converted to radians, 120 deg = 2/3 * PI radians (PI can be entered as WhiteShift SPC).

  Enter ' (A, ∠2/3 * PI) + B * i =-4 + 3 * I '

  I use 2/3 integers to facilitate the exact mode of address, shortened to ∠ is ALHPA, redshift, 6.

  That the calculator is in rectangular mode, it will be transformed into rectangular.

  You should now have:

  A * COS(2/3*PI) + A * SIN (2/3 * PI) * + B * i =-4 + 3 * I

  Now, press ENTER to duplicate the equation.

  Go to WhiteShift MTH, CMPLX.

  Select RE for the real part:

  A * COS (2/3 * PI) =-4

  Press SWAP (silver arrow)

  Select IM to the imaginary part:

  A * SIN(2/3*PI) + B = 3

  You should now have 2 equations on the stack (the real part of level 2) and the imaginary part in level 1

  You can now put them in a table (2,-> TABLE) and use the Solver to solve for A and b.

  NOTE: when you use real numbers instead of integers, you may use the digital Solver of multiple equations MSLV (NUM. SLV). This requires a set of initial parameters i.e. guess (see Chapter 7 of the great user's Guide or MSLV AUR).

  (2) :

  You cannot resolve Y/Z directly. However, you can solve for and there, Z , then simply ÷ to get Y/Z.

  Level 2: [(X-Z) / Q + (X - Y) / (X - Y) + R / Q = 0 (X - Y) / Q = Y/R]

  Level 1: [Y - Z]

  S.SLV, point 6 or F6 to SOLVE

  Will result in a list or a table that contains solutions for Y and Z depending on X, Q and r. use OBJ-> once or twice to put both equations separately on the stack, then press fracture for Y/Z.

  Note, you can change the representation of the solution by the factor or simplify (best way to find who is to press down arrow money to enter the Equation Editor, select the right side of the eqation then de FACTO or SIMP).

  I hope this helps.

• Questions write equations to existing variables in Hp 50 g

  Hello

  I'm studying for the exams in June and I'm writing long equations in my HP (algebraic, std, degrees, rectangular), but whenever I try to write a new one, if there is a variable with the same name, it displays its value, not the name I typed. I know this may sound confusing, but here's an example:

  • I do an exercise and I'm saving the following equation: A = B + C (for example).
  • I use it and I begin a new fiscal year.
  • In this exercise, I save the equation: B = C * E * R/T, but when I try to save in a variable, it changes the letters B and C for their values. So if I want to solve an equation with different values of B & C I can not because they do not appear on the equation 'solved '.

  I know I can clear all variables before writing a new equation, but it's a pain in the ass, is there a good way to do it?

  Thank you.

  JamesJames wrote:

  I'm studying for the exams in June and I'm writing long equations in my HP (algebraic, std, degrees, rectangular), but whenever I try to write a new one, if there is a variable with the same name, it displays its value, not the name I typed. I know this may sound confusing, but here's an example:

  • I do an exercise and I'm saving the following equation: A = B + C (for example).
  • I use it and I begin a new fiscal year.
  • In this exercise, I save the equation: B = C * E * R/T, but when I try to save in a variable, it changes the letters B and C for their values. So if I want to solve an equation with different values of B & C I can not because they do not appear on the equation 'solved '.

  You not need to use this method to purge.

  your first equation must be entered this way: (use equation writer or the command line)

  "" A = B + C ".

  STO > "EQ1".

  (for this example, when "the equation" was performed for the equation A = B + C, a 8 value was entered for 'B' and a 9 value was entered for 'C')

  NOW THE IMPORTANT STEP...  (this step is not necessary in RPN mode... In RPN mode, simply enter the equation using EQW or line commmand is also normally done)

  When you enter the second equation, this can not be easily done using the equation editor.

  To easily fix the problem to get into the second equation and keeping variables unadulterated into the equation, you must enter the equations on the command line.

  Start with a single quote... This indicates the 50G an equation will be entered

  When you enter the variables that were previously used... put single quotes around these variables...

  for example:

  "« B » = « C » * E * R/T"

  Press ENTER

  your screen should look like this:

  

  now

  STO > "EQ".

  

  Enter "The equation" and the variables used before are shown with their values pre-filled... but all the variable can be changed...

  

  NOTE NOTE: If you want to change the equations in this window, use the right CHOOS button, select another equation in this example, it is called EQ1... (The CHOOS softkey is available only when the equation is highlighted as shown in the screen above)

  Press CHOOS, and see the following:

  

  Select EQ1 and press F6 (OK)

  now, the screen changes:

  

• HP50g summons to infinity problems

  I am doing a summons to infinity and if I keep it in the equation writer I just get the hourglass and he can't understand it. If I eval in the stack with indicator 3 checked I get the same thing, but if I hit Cancel all of a sudden the right answer appears. If I uncheck flag 3 then all that I get is (?). Can someone tell me please how to properly evaluate a summons to infinity. Thank you.

  Hello! wolverine1776:

  You must have a lot of patient, with your HP50G. The result is bigger and it takes several hours to get the results.

  See the following image for Wolfram mathematics...

  

  With my HP50G and the following configuration...

  Mode of operation... RPN

  Number format... STD

  Pavilion 01 main value

  Indicator function 03-> num

  In this case, I'm set...

  Exact mode of flag 105 on

  And wait for 20 ", I, in advance...

  

  With approx. mode, is... 2.18191479816E - 2

  In Exact mode and about, I'm interrupted after 20 ", with the buttons ON .

• HP 50 g EVAL error: internal error CASES

  I'm trying to use the EQW Solver to solve a formula that uses the sigma notation.
  
  n
  Σ (a + i (b - a) / n)(b-a)/n.
  I have = 1
  
  When you try to solve for the proof I get the indicated error.
  Does anyone know why such an error occurs? Is there a problem with the symbolic notation or a bug in my HP 50?

  When you enter the initial problem of the summons, you must enter an algebraic equation.

  If you use the equation writer and enter the summation symbol as shown:

  

  the 50G will not enable the lowercase letter "I" entered as the summation variable (where the arrow is at in the screenshot above).

  Also, FYI, some branches of engineering also recognize the lowercase letter 'j' as the symbol of a complex variable instead of the letter 'i '.  It has to do with the bad hand writing and the letter 'i', similar to the lowercase letter "L", etc... so you can avoid using 'i' tiny or low case 'j' in the equations at least that specifically refers to a complex number ('i' tiny for the equations of 50G only).   However, in your present mathematics classes it may not be of concern.

  If I understand the mathematical order of precedence indicated in your displayed equation, with some necessary changes to the variable of summation your equation should look like the following:

  

  Enter this equation in the battery, then press EVAL.

  

  If you want a different form of the same solution, run FDISTRIB

  

  set the CORRECT mode and do of course-2 flags and flag - 3 is deleted (constant-> symb; function-> symb) for this equation - see the reference to advanced for the function ∑ users.

• Reactance frequency-dependent in the definitions of materials

  I'm trying to run a simulation for a material with a reactance frequency-dependent. However, when I try to enter a variable for the frequency in the definition of material I receive the following errors:

  Global definitions
  21:50:04 frq - error of the equation: Variable not found '_FREQ '.
  Structure of EM 1
  21:50:04 STACKUP. SUB: Error evaluating the 'React' parameter (error of the equation: Variable "frq" is not valid). (Click Help.)

  In the global definitions and schemas, I tried setting a suggested for such frequency variable in the examples by assigning frq<_FREQ. i="" also="" created="" an="" equation="" to="" use="" for="" the="" reactance,="" ex. ="" x(f)="(2*_PI*f)." i="" then="" entered="" x(frq)="" for="" the="" reactance="" in="" the="" impedance="" defintion="" of="" the="" material="" defs="" tab="" of="" the="" enclosure="" properties.="" these="" simulations="" were="" attempted="" using="">

  Any help would be greatly appreciated.

  There are a few possibilities to condition some materials for AXIEM frequencies.

  Please see the attached project.   Output equations write a few equations and are drawn to help define the equations.  the STACKUP does NOT use these it is just for debugging purposes.

  For some settings, you can enter a frequency dependence, this example is it for Er and TanD.

  I don't know exactly which parameter you want to make dependent on frequency, I'm sure that you can set the type for the ResSQ and react.

  This should get you.

• FrameMaker-&gt; XML-&gt; FrameMaker questions

  Hello

  I have currently about 150 pages fm submits, that were originally unstructured, but I managed to make a structure of work for her. There are mainly paintings, which have references, images, graphics, tables and internal stuff, so all normal technical document. Reason I'm structuring it and what about XML is that we have another file XML where we will add data in this document, and currently, it is done by hand and we want to do it my machine. These things are done by the magic of programmers who can better c-related speaking in tongues English.

  I can make the XML of this fine, so that the XML that is created is valid and structure looks like, it is very well copied as XML. Graphics, images and internal tables are currently inside anchored like graphics frames, since they were something similar in the informal document and read/write rules that transform images EPS, because internal tables do not work like SVG, I prefer otherwise, because it is also the XML and anchored frames have some links referring to other parts of the document. SVG would be also easier to manage in programming (or so I think) as the EPS. If anyone can think of the best way to do this, I'm open to suggestions.

  Question now is when I opened this created XML in FrameMaker, it loads first half-hour (computer is Intel T2500 2 GHz, 2 GB of RAM, computer laptop XP Pro SP3 and FM is version 10), then displays the 9 error pages records concerning 'framemaker cannot insert table (cell) at the current position cell' and then document appears as 600 to 1000 pages 'masterpiece' where 150 pages seems normal but after this first page If displays of new and tables is presented as a column in the page. It was suggested that if the file is created by FrameMaker, FrameMaker it would open normally, but apparently this is not the case.

  Reading/writing-rules currently look like this: (if it is useful at all)

  {"Table" element

  is the table fm "Table" element

  }

  
  

  element {"TableHead"

  is the fm "TableHead" table header element

  }

  element {"TableBody"

  is part of fm "TableBody table body."

  }

  
  

  element {'Row'

  table fm line item is "Row".

  }

  element {'cell'

  is fm "Cell" table cell element

  }

  
  

  cross reference fm 'HRef' element's "HRef";

  
  

  element {'Row'

  is the element of row in table fm 'ROW '.

  }

  
  

  'Cell' is fm "CELL" table cell element

  
  

  element {"Graphic"

  is the graphic element of fm;

  writer anchored frame {}

  export to file ' $(entity) .eps "as"EPS ".

  specify the size in pt;

       }

  }

  
  

  element {"Equation"

  is fm equation element.

  export equation writer to file ' $(entity) .eps "as"EPS ".

  }

  There are some things that might look odd for some people. There are a few conditional text in FM submit and without rules as

  'Cell' is fm "CELL" table cell element

  XML is not valid against the DTD.

  I'd appreciate any help. I can also provide other files here, but due to NDA reasons, real document is no-go, but I think that if the structure is needed to see, the DTD is very good.

  Ian, Russ,

  As you probably know both, it is perfectly acceptable to have multiple rules read/write for a type of item. In this case, the rules include:

  element {'Row'

  table fm line item is "Row".

  }

  element {'Row'

  table fm line item is "ROW".

  }

  or

  element {'cell'

  is fm "Cell" table cell element

  }

  'Cell' is fm "CELL" table cell element

  The first pair of rules said FrameMaker when it creates XML, FrameMaker and PLACE items that both are output as an XML line items. The second pair of rules said the items FrameMaker and CELL are saved as XML as cell.

  When there are several relevant mappings, FrameMaker uses the first to appear in the rules of r/w. When is the reading of XML documents by using these rules, he could map a line XML line or LINE item and a cell to cell or CELL. Since mixed case of these two rules version appears before the version all uppercase, when reading XML, FrameMaker elements with the same name as the XML namespace it creates.

  Ejlamsa,

  Your FrameMaker EDD has both row and LINE (cell and CELL)? If this isn't the case, you can remove rules for the types of items you don't use.

  Insofar as the error messages and the wrong document when you open XML, Ian is quite correct that FrameMaker needs to know the number of columns there are in the table. If your DTD does not yet of this attribute, the simplest solution is to add a. It is possible using a plug-in or script to create columns as needed, but it's a lot more effort.

  -Lynne

• LabVIEW. Write an equation within a formula node

  How I would write this equation chl = (4.9467 * mv)-0.3239 inside a formula node? Thank you

  You don't need even a node form. A node of expression would suffice.

• Write equations on the front for data acquisition

  Hello

  I was wondering if its possible while a VI is running for:

  1. Write an equation custom on the façade.
  2. Use the equation on data acquired since the VI is running.
  3. Draw the calculated data.

  See you soon

  I think you should take a look at the examples (help > find example... > tab "search" > try with formula or equation), it is one that shows in a simple way, look here: C:\Program NIUninstaller Instruments\LabVIEW 2011\Examples\measure\maxmpl.llb\Waveform Formula.vi using generation

  hope this helps

• Surface Pro pen is selecting equation but don't write about Microsoft Mathematics

  I have the pro surface and installed Microsoft Mathematics for school.  Using the stylus rather than write me an equation with the pen he keeps selecting the equation when I choose ink.  The pen is compatible with Microsoft Mathematics or is this a bug?

  Hello

  This issue is addressed by Microsoft in education team. I suggest you post your question here.

  Microsoft in education: http://www.microsoft.com/education/en-us/Pages/contact_us.aspx

  Thank you.

• Write an equation in JavaScript for a loan agreement

  Hello

  I can't put an equation in the form of JavaScript. I'm trying to calculate how much a loan will cost a fixed interest for a period of time.

  So we have the equation: estimated current value = (1 + InterestRate) ^ LoanTerm

  With the fields in my form, I think that it would look like this: Ttl = AmountFinanced (1 + rate) ^ NumberofPaymentsRow1

  My JavaScript for my form named "Ttl" currently looks like this: AmountFinanced * Math.pow (1 + rate, NumberofPaymentsRow1)

  -Unfortunately, it does not return a value, and I'm out of ideas. I don't know where I'm wrong and any help would be appreciated.

  

  You get the errors arise?

  Have you checked the JavaScript console to find errors?

  The custom JavaScript calculation option requires the complete JavaScript coding and is not a front-end process collection of treatment parameters as the first calculation of two options. You must write the JavaScript complete not one shortened.

  JavaScript is an object oriented language, you will need to connect to a domain object until you can access the value property of the field. You must use the 'doc.getField (cName)' method to acquire the field object.

  You must also specify the target or object where you want to place the result.

  Event.Value = this.getField("AmountFinanced").value * Math.pow (1 + this.getFieldI "spleen '") .value, this.getField("NumberofPaymentsRow1").value);

  Note that JavaScript is case-sensitive for domain names, function names, variable names, etc.

• Solve complex equations stored on the HP50g

  Hello

  I stored the 2 equations Δ & K, but when I try to solve in the Num. solv. I get the message bad guess (es). I searched on google and it seems that it is because I work with complex numbers and the num solv. can't handle them.  However, I have not found the way to solve them. I use two equations, so it would be great if you could help me find a solution where I can solve them enter the values of the variables, just like with the num solv.
  

  

  FYI, make sure you go back and read your old post... the method to enter the equations with existing values using EQW is demonstrated in the last entry and unfortunately was added after you received the answer to your question...

  Here's the simplest method

  all four variables stored... S11, S12, S21, S22,

  Press the following keys...

  EVAL

  selection for DELTA key

  Come in

  EVAL

  selection for K key

  Come in

  There is another method by using the MENU (30)

  However, I have to work on the process I'm not as familiar with the algebraic entry mode...

  unless another Member of the forum knows how to use MENU (30) in algebraic mode and can post the post-processing.

  will try to send the process later tonight...

  MENU 30 is generally described beginning on page 6-26 of the 50G (not the user manual) User Guide

  the section is the title "Submenu SOLVR"

  the manual describes the process as

  MENU (74)

  Come in

  Press F1 (root)

  Press F1 (solvr)

  MENU (30)

  Come in

  is direct access

• Trigonometrial equation with several solutions on HP50g

  Hello!

  I am trying to solve the following equation:

  1.5 * Xf + 2 * cos (Xf) = 2.158.

  But it's a little more complicated than that. Using the command ADDRESS, I get:

  XF = 0.5247...

  But this equation comes to solve some integration that goes from Xo = 0.848 this XF I find in the above equation. So, Xf should be greater than 0.848.

  Is there a way to fix this? I tried LINSOLVE, but it won't allow me to use X > 0.848 as a conditionant. The ZEROS command does not work either.

  Thank you very much!

  Have you tried to see if any graphic alternatives?  No doubt outside the ABS > 3.

• First HP: differential equation solver...

  Hi all

  I would like to know how to use HP first to solve the differential equation

  
  
  I tried to read the user manual, but with no luck.

  Tim

  Hi!, @Theplum:

  Welcome to Forum!

  If you learn properly the use of desolve, you see, better explained in the AUR HP50G, of...

  [PDF] HP 50 g / 49 g + / 48gII graphing calculator

  h10032.www1.HP.com › manual GTC