Sharp EL5100 Instruction Manual  PDF, full text searchable

10162017, 01:09 AM
(This post was last modified: 10162017 01:11 AM by striegel.)
Post: #1




Sharp EL5100 Instruction Manual  PDF, full text searchable
For anyone who may be interested in a soft copy of this manual, I recently scanned my Sharp Scientific Calculator Model EL5100 Instruction Manual. It consists of 80 pages plus the outside and inside of the front and rear cover pages.
It is freely available from http://striegels.com/alan/sharp/Sharp%20...Manual.pdf. The PDF file is fully textsearchable, although the OCR has no success with understanding symbols, such as pi, squareroot of x, etc. Alan 

10162017, 02:02 AM
Post: #2




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
Thank you. Very useful!


10172017, 03:22 AM
Post: #3




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
Good job, did you have to cut it up to scan it? I have seen videos of people cut the spine from a text book with a power saw and feed the loose leaf into a scanner.


10172017, 10:51 AM
Post: #4




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
(10172017 03:22 AM)Dan Wrote: Good job, did you have to cut it up to scan it? I have seen videos of people cut the spine from a text book with a power saw and feed the loose leaf into a scanner.Absolutely not! I did have to crease the pages for scanning on a flatbed scanner but I could not bear to cut it apart if I couldn't reassemble it intact. In my spare time over the course of several weeks, I put a black sheet of paper behind each page before laying it across the scanning bed of a multifunction HP printer  the PSC 950. On top of that I placed a larger black cardboard piece and weighed it down. (Incidentally, the weight was an RS232 break out box that happened to be sitting on the table with the MFP). Each page was scanned at 600 dpi then aligned, cleaned a bit, and cropped with ThumbsPlus. The resulting 84 .png files were assembled into the final .pdf using ABBYYY PDF Transformer+. Alan 

10232017, 05:08 AM
Post: #5




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
Apologies, that was a stupid question.
Over the years I have accumulated a lot of books that are just taking up space and gathering dust. Cutting them up and scanning is an option for those with little value but is time consuming. I have to accept that I am a hoarder and just get rid of them. It helps that a lot is online now. 

10232017, 12:39 PM
Post: #6




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
Thank you!


10242017, 06:06 AM
(This post was last modified: 10242017 06:30 AM by Johnny_Bjoern.)
Post: #7




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
Thank you. Great job.
And very usefull. I bought an EL5100 recently. This makes it "a little" easier to use :) BTW the book suggested by the manual "Advanced Analysis with the Sharp 5100 Scientific Calculator" by Jon M. Smith is $135.33 on Amazon. 

05082022, 08:28 PM
(This post was last modified: 12272023 03:10 AM by robve.)
Post: #8




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
Thank you for sharing the EL5100 manual!
I recently acquired an EL5100 to add to my collection. I also have an EL5100(S). Both are very nice looking machines and interesting from a historical point of view: "In 1979, the world's. first direct formula entry scientific line of calculators, the EL5100 series, was introduced by Sharp. Models EL5100 and EL5101 are specifically designed to simplify computation in the areas of architecture, civil engineering, electricity, statistics, surveying and more. The unique rolling writer feature and playback in direct formula entry, add many advantages in solving complex formulas. Additionally, the dot matrix liquid crystal display provides alphanumeric readout."  Sharp EL5100/5101 Scientific Calculator Application Text. "As a world first, Sharp introduced the EL5100 scientific calculator in 1979, which was the first to include a dot matrix LCD display capable of displaying alphanumeric characters, and the first to be used with the now standard expression evaluation method: the algebraic expression keyed in will be calculated only after pressing the = key. In addition, the machine was programmable, as it was able to store such expressions in four programs (areas) and recalculate them with new and new values. The manufacturer called the new system AER which abbreviates Algebraic Expression Reserve. Later, several machines were built according to this system, and the AER itself was further developed and expanded with conditional branching, looping and subroutine handling capabilities, which are common in professional programmable calculators." Virtual Museum of Calculators Hacking the EL5100 I really enjoy using RPN machines as well as any machine that is programmable, even the esoteric vintage Sharp AER calculators such as the EL5100 and EL5200/EL9000. After having used the EL5100(S) for some time, it was surprising to me that there is a lot more the EL5100 can do with some hacks than the manual and application text suggest! To dig into this matter further, note that the EL5100 manual on pages 9 to 11 illustrates how the EL5100 evaluates expressions with an X register, a "data buffer" and a "function buffer". The fact that two stacks ("buffers") are used and the steps performed to evaluate expressions, clearly shows that the Sharp EL5100 uses a simple implementation of the Shunting Yard algorithm. The Shunting Yard algorithm is a limited form of socalled operatorprecedence parsing which itself is a limited form of LR parsing. The EL5100 combines the Shunting Yard algorithm with a "last answer" register X by passing X as an operand to operators. Expressions that would normally be flagged as syntactically invalid by operatorprecedence parsers can be evaluated on the EL5100 in AER programs. This opens the door to hacking EL5100 AER programs to do things that would not be easy or even possible if we stick to the manual. AER on the EL5100 lacks loops, conditionals and subroutine calls. AER is limited to expressions over global variables A to J and simple functions definitions. An expression can be up to 80 "steps" long. A step is essentially a unit of one byte or one character. Builtin functions, such as SIN, take one byte. Conditional execution hacks A zero power 0Yˣ0 returns 0 (mathematically it is undefined). This can be used to implement comparison operations:
Note 2: Powers Yˣ do not accept negative left operands. We can use squaring and repeated multiplications or √A²YˣB or A²Yˣ(B÷2) i.e. if B is even. For example, using the 4th expression in the list above, we can assign the value of A to B if C<0 with: (AB)×(√C²C+1010)Yˣ0+B STO B Missing function hacks The following functions are missing on the EL5100 but can be implemented as follows by using the EL5100's nonrounding to 10 digits:
AER programming hacks This list is useful to significantly reduce AER code size and to avoid displaying intermediate results when a comma is used to separate expressions (later AER versions introduced a space operator for this reason.) The first two points in the list below are mentioned in the manual, but are included here since we use them a lot. All other points are not mentioned anywhere in the manual or anywhere online as I've searched extensively online for resources on the EL5100(S):
A summary of EL5100(S) functions and operators Code: Functions and prefix operators: Gotchas
New AER programs Solve f(x)=0 for x with the bisection method This program uses a conditional assignment EA)×(√F²F+1010)Yˣ0+A STO A to assign E (x) to A (left bound of the domain when F<0 (f(x)<0) to bisect the domain while searching. Code: 1;f(AB=BA)÷2 STO H A+H STO E◣ where: 1; specifies domain brackets A to B 2; performs one bisection step to move x closer to the solution, displays f(x) The function f(x) to solve for x is specified in 2; up to STO F, with E as x. Press 1; or COMP to specify bounds A and B, then press 2; and repeat COMP until the value of f(x) displayed is zero or small enough. Press RCL E to display the root x. If the value f(x) displayed grows instead of shrinks, then start over with switched bounds A and B. It is assumed that the bounds A and B satisfy f(A) ≤ 0 ≤ f(B). If the values f(x) do not quickly converge to zero but rather converge to one of the bounds A or B, then the bounds A and B may not bracket the solution. For example, when f(x) slowly shrinks with E moving toward A, then press 1; to start over with a smaller bound A and set B=E (the current x). Example to solve x^22=0: Press 1; then enter 0 for A and 10 for B: 1;A=0 COMP 1;B=10 COMP Press 2; then press COMP until f(x)=0 or a small f(x) is displayed: 2;ANS 1= 23. COMP 2;ANS 1= 4.25 COMP ... 2;ANS 1= ‐4.ᴱ‐11 Press RCL E to obtain the solution x of f(x)=0: 1.414213558 Press 1; then enter ‐10 for A and 0 for B: 1;A=‐10 COMP 1;B=0 COMP Press 2; then press COMP 2;ANS 1= 23. COMP 2;ANS 1= 54.25 Because the value grows, we start over with A and B switched: 1;A=0 1;B=‐10 Press 2; then press COMP until f(x)=0 or a small f(x) is displayed: 2;ANS 1= 23. COMP 2;ANS 1= 4.25 COMP ... 2;ANS 1= ‐4.ᴱ‐11 Press RCL E to obtain the solution x of f(x)=0: ‐1.414213558 A better algorithm for root search is the secant method: Solve f(x)=0 for x with the secant method Iterate until convergence \( x_{n+1}=x_nf(x_n)\frac{x_nx_{n1}}{f(x_n)f(x_{n1})} \) Code: 1;f(E=+ᴱ‐4 STO D STO G◣ where: 1; specifies the starting point x as E 2; evaluates f(x) and performs one secant step to move x closer to the solution, displays f(x) The function f(x) to solve for x is specified in 2; up to STO F, with E as x. Press 1; or COMP to specify starting x as E then press 2; and repeat COMP until the value of f(x) displayed is zero or small enough. Press RCL E to display the root x. Example to solve x^22=0: Press 1; then enter 2 for E: 1;E=2 COMP Press 2; then press COMP until f(x)=0 or a small f(x) is displayed: 2;ANS 1= 2. COMP 2;ANS 1= ‐2 COMP ... 2;ANS 1= ‐8.9ᴱ‐10 Press RCL E to obtain the solution x of f(x)=0: 1.414213562 Press 1; then enter ‐2 for E: 1;E=‐2 COMP Press 2; then press COMP 2;ANS 1= 2. COMP 2;ANS 1= 1.999799998 COMP ... 2;ANS 1= 9.2ᴱ‐10 Press RCL E to obtain the solution x of f(x)=0: ‐1.414213562 Simpson's rule of integration Simpson's method is listed in the manual, but is quite cumbersome to use compared to this one. \( \int_a^b f(x)\,dx \approx \frac{h}{3}\left[ f(x_0) + 4\sum_{j=1}^{n/2} f(x_{2j1}) + 2\sum_{j=1}^{n/21} f(x_{2j}) + f(x_n) \right] \) Code: 1;f(ABC)=0 STO I 1 STO J 2 STO H A STO E BA)÷C STO D◣ where: 1; specifies integration range A to B in C parts, C must be even 2; evaluates one step of the function 3; computes the final result The function is specified in 2; up to STO F, with E as x. Press 1; or COMP to specify A, B and C, then press 2; and repeat COMP until the counter C value displayed is 1. Press 3; to obtain the integral value. To restart, press 1;. In this case the values of A and B were retained, but C must be specified. Example to estimate \( \int_1^5 x^3+2x^2x+2\,dx \) in 8 steps: Press 1; then enter the value 1 for A, 5 for B and 8 for C: 1;A=1 COMP 1;B=5 COMP 1;C=8 COMP 1;ANS 1= 0.5 Press 2; then press COMP until 1 is displayed: 2;ANS 1= 7. COMP ... 2;ANS 1=1. Press 3; 3;ANS 1= 234.6666667 Differentiation Code: 1;f(A)=√A²+ᴱ‐9)×ᴱ‐4 STO H A+H÷2 STO A 0 STO D◣ where: 1; specifies the differentiation point 2; evaluates the function, which must be done twice The function is specified in 2; up to = with A as x. Press 1; or COMP to specify A then press 2; and COMP to obtain the differential of the function at point A. Example to compute \( \frac{d\sin(x)}{dx}_{x=\pi/3} \) which is COS(π/3)=0.5: Press DRG until RAD annunciator lights up Press 1; then enter π÷3 for A: 1;A=π÷3 COMP 1;ANS 1= 0 Press 2; then press COMP: 2;ANS 1= 8270.183412 COMP 2;ANS 1= 0.5 Rational approximation by continued fractions Code: 1;E+1+ᴱ101ᴱ10 STO D ED STO E BD+J STO F B STO J F STO B CD+I STO F C STO I F STO C B÷C STO D E⁻¹ STO E AD◣ Press 2; to enter a value to convert to rational form Press 1; to compute the first approximation D=B/C~A, displays the difference AD Press COMP to compute the next approximation D=B/C~A, displays the difference AD Repeat COMP until the difference (error) is sufficiently small or zero Result: B is the numerator, C the denominator and D=B/C Example to convert \( \pi \approx 355/113 \): Press 2; then enter π 2;A=π COMP Press 1; 1;ANS 1= 0.141592654 COMP 1;ANS 1=0.001264489 RCL B 22. RCL C 7. COMP 1;ANS 1= 0.00008322 RCL B 333. RCL C 106. COMP 1;ANS 1= 0.00000267 RCL B 355. RCL C 113. This gives 355/133 as an approximation of π with 5 digits precision (0.00000267 residual). Continue to obtain more accurate approximations. GCD The Euclidean method using modulo of A and B computed with A(A÷B+ᴱ10ᴱ10)B. Code: 1;A(A÷B+1+ᴱ101ᴱ10)B STO C B STO A C STO B Press COMP until zero is displayed (or when an error occurred), then A holds the GCD result. Negative A or B may produce a negative GCD in A. In that case ignore the sign of A or correct it with √A². Example: 5040 STO A 411 STO B COMP 1;ANS 1= 108. COMP 1;ANS 1= 87. COMP 1;ANS 1= 21. COMP 1;ANS 1= 3. COMP 1;ANS 1= 0. RCL A 3. Error function An erf() approximation with maximum relative error 0.00013: Code: 1;f(A)=² STO B √B÷A×√(1e(()B×(4÷π+.147B)÷(1+.147B Note: erf(0)=0 but we get an error because √B÷A is used to determine the sign of A An erf() series approximation \( {\rm erf}(t)=2/\sqrt{\pi}(xx^3/3+x^5/(5\times 2!)x^7/(7\times 3!)+\cdots) \) Code: 1;C+1 STO C ()BA²÷C STO B ×C÷(2C1 M+◣ where: 1; computes the next term of the series, adding the term to M 2; sets the t parameter as A and initializes B, C and M Press COMP to specify t as A, then press 2; and repeat COMP until the term becomes sufficiently small (e.g. use TAB to specify precision). Press RM at any time to view intermediate results and the final erf(t) result. Note: erf(0) is 0 but we get an error Example erf(2): Press 2; then enter the value 2 for A: 2;A=2 COMP Press 1; then press COMP until the term becomes sufficiently small: 1;ANS 1= 2.256758334 COMP 1;ANS 1=3.009011112 COMP 1;ANS 1= 3.610813335 COMP 1;ANS 1=3.438869843 COMP 1;ANS 1= 2.674676544 COMP 1;ANS 1=1.750697374 COMP 1;ANS 1= 0.987572878 COMP 1;ANS 1=0.489083711 COMP 1;ANS 1= 0.215772225 COMP 1;ANS 1=0.08580416 COMP 1;ANS 1= 0.031052934 COMP 1;ANS 1=0.010310065 COMP 1;ANS 1= 0.003161753 COMP 1;ANS 1=0.000900784 COMP 1;ANS 1= 0.000239618 COMP 1;ANS 1=0.000059776 COMP 1;ANS 1= 0.000014038 COMP 1;ANS 1=0.000003114 RM 0.99532172 COMP 1;ANS 1= 0.000000655 RM 0.995322375 COMP 1;ANS 1=0.000000131 RM 0.995322244 COMP 1;ANS 1= 0.000000025 COMP 2;ANS 1=0.000000005 RM 0.995322264 COMP 1;ANS 1= 7.8492065557ᴱ10 RM 0.995322265 Sterling's Gamma approximation Code: 1;f(A)=√2π×AYˣ(A.5)×e(1÷12AA Complex arithmetic Code: 1;f(BJ)=A+B STO A,I+J STO I◣ where 1; adds B+Ji to A+Ii 2; multiplies A+Ii by B+Ji 3; divides A+Ii by B+Ji Example: 12.5 STO A re of first argument ()7 STO I im of first argument 2ndFG 2;B=3 re of second argument 2;J=2 im of second argument 2;ANS 1= 51.5 re of the product 2;ANS 2= 4. im of the product These examples I came up with hopefully illustrate how the EL5100 can be a bit more appealing and competitive to use, despite its age dating from 1979. The AER examples can be a bit puzzling to follow: the EL5100 AER notation looks algebraic, but it's more of a mix of algebraic and keystroke programming. The intro part helps to explain what constructs I've used for these examples. I am sure many other simple algorithms can be implemented on the EL5100 with some EL5100 "hacking". Edit: minor update to fix a typo and fix trunc(), round() and related functions and examples to handle values .1 to .9 that appear to be rounded when adding \( 10^{10} \) even though no other value ranges are rounded, e.g. 1.1+ᴱ10ᴱ10 = 1 but .1+ᴱ10ᴱ10 = .1. Also .9 to .1 has this problem. To fix trunc() to handle any value, including .9 to .1, we can use the much more elaborate formula (10A+ᴱ11)×.1ᴱ10. A strange and charming quirk of the EL5100.  Rob "I count on old friends to remain rational" 

05092022, 12:17 PM
Post: #9




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
Thank you for sharing your hacks with us, Rob.


05112022, 12:26 AM
Post: #10




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
(10172017 03:22 AM)Dan Wrote: Good job, did you have to cut it up to scan it? I have seen videos of people cut the spine from a text book with a power saw and feed the loose leaf into a scanner. No need to use a power saw if they are soft bound. I just take them to Staples, have them slice off the spine, then scan using a fast document scanner. If I wish to preserve the original, I take it back to Staples and have them punch it and wire bind it for me. End result is a nice scanned copy AND a spiral bound manual that can still be used  actually a lot better since the pages can now be folded back onto themselves. The few times I tried scanning Sharp manuals, I found that there can be a lot of bleed through. Unfortunately, Sharp decided to use very thin paper for a lot of their manuals. 73 Bill WD9EQD Smithville, NJ 

05112022, 12:20 PM
Post: #11




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
(05112022 12:26 AM)Bill (Smithville NJ) Wrote: The few times I tried scanning Sharp manuals, I found that there can be a lot of bleed through. Unfortunately, Sharp decided to use very thin paper for a lot of their manuals. Place a matte black piece of paper over top of what you are scanning to reduce bleed through problems. It sounds counterintuitive but it works... 

05112022, 02:12 PM
Post: #12




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
(05112022 12:20 PM)Jeff_Birt Wrote:(05112022 12:26 AM)Bill (Smithville NJ) Wrote: The few times I tried scanning Sharp manuals, I found that there can be a lot of bleed through. Unfortunately, Sharp decided to use very thin paper for a lot of their manuals. I've done that before and it does work. When doing this in color scanning, you can get a tint to the background. I've found that you can load the scanned page images into a paint program and then manipulate the brightness, contract and gamma settings to eliminate or lesson the background tint. It's a pain, but is doable. And the results can be quite good. 73 Bill WD9EQD Smithville, NJ 

05112022, 02:52 PM
Post: #13




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
(05082022 08:28 PM)robve Wrote: Hacking the EL5100 Wow! What an massive knowledge of Sharp secrets! Very nice! 

05182022, 02:53 AM
Post: #14




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
A charming quirk of the vintage EL5100 is that 1.9+ᴱ10ᴱ10 = 1 because of nonrounding to 10 digits. So adding and subtracting \( 10^{10} \) removes the fractional part. This comes in handy to "hack" algebraic expressions on the EL5100 that require truncation, rounding, fractional part and mod, which I listed in a previous post together with some example AER programs that use these functions.
So I was surprised to discover an exception to this rule 0.1+ᴱ10ᴱ10 = 0.1 and 0.1+ᴱ10ᴱ10 = 1. By contrast, fractions smaller than \( \pm .1 \) and values larger than \( \pm 1 \) with a fraction are truncated to a whole number. To make sure that truncation towards zero always works, we just need a more elaborate expression (10A+ᴱ11)×.1ᴱ10 to trick the internal BCD calculation logic to discard a remaining fractional digit. That works for any value A. For nonnegative A, the simpler expression A+1+ᴱ101ᴱ10 suffices (obviously, since we simply avoid .1 to .9). So I made a minor update to the EL5100 "hacks" post to replace truncation and related functions with the simpler A+1+ᴱ101ᴱ10 expression, since the example AER programs assume nonnegative inputs. Here is another new AER program example that uses this trick: Base conversion Code: 1;A STO C ÷B+1+ᴱ101ᴱ10 STO A CAB Store a positive value in A to convert and positive nonzero base in B Press COMP to display the least significant digit Press COMP to display the next digit and so on until the most significant digit is displayed (and A is zero) Example to display 5042 in hex: 5042 STO A 16 STO B COMP 1;ANS= 2. COMP 1;ANS= 11. COMP 1;ANS= 3. COMP 1;ANS= 1. Hence, 5042 in hex is 13B2  Rob "I count on old friends to remain rational" 

11202022, 02:15 AM
(This post was last modified: 12172023 05:47 PM by robve.)
Post: #15




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
I wonder if anyone on this forum has attempted the new LCD replacement part for the Sharp EL5100:
https://www.tindie.com/products/halfbake...pel5100/ The LCD is designed to work with the EL5100. I assume it works with the EL5100S too, but not sure. I have an EL5100S with deteriorating LCD (bleed), so a replacement would be nice. EDIT: I can confirm the new LCD works perfectly with my EL5100S. It's made by the same guy who designed the Sharp PC1211 LCD replacement, which was featured by Jeff in a Hey Bird! video I would love to see a video on this EL5100(S) replacement LCD. Luckily, my EL5100 is still perfect  Rob "I count on old friends to remain rational" 

01082023, 05:07 PM
Post: #16




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
(11202022 02:15 AM)robve Wrote: I wonder if anyone on this forum has attempted the new LCD replacement part for the Sharp EL5100:I've just done this today! The job was very similar to the PC1211 replacement (which I had done previously) but more straightforward, because the EL5100 only has a single circuit board. Here's a picture showing the result: Note for UK readers: you can now purchase HalfBakedMaker's replacement displays from Lectronz (link taken from the tindie.com page), which presumably handles the postBrexit VAT correctly. No more need for forwarding services! (I have no link with the seller other than being a satisfied customer.) Nigel (UK) 

01082023, 10:22 PM
(This post was last modified: 01082023 10:24 PM by pier4r.)
Post: #17




RE: Sharp EL5100 Instruction Manual  PDF, full text searchable
Thank you for sharing!
(10232017 05:08 AM)Dan Wrote: I have to accept that I am a hoarder and just get rid of them. Libraries! Send them to libraries. if they are technical, to technical libraries (universities for example) I remember when I couldn't keep my copies of several magazines about computers and I went to the local library, they said "yes we will take them!" and I carted those with a wheelbarrow there. A collection of several years in fact. Wikis are great, Contribute :) 

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