Output(1,1,"v=v0+at")
Output(2,1,"deltax=v0t+1/2at")
Output(4,1,"v^2=v0^2+2deltax")
Output(5,1,"deltax=1/2(v0+v)t")
Output(6,1,"vt-1/2at^2")
I use a cable to transfer programs.
Above code works perfectly fine besides the first line where it outputs v=v0+atMU. If I move the last 3 outputs by one row it becomes MS.
Was wondering if someone can explain why?
I feel like there must be something happening behind the printed text. Could the name of the program end in MU? And the one where you shift the last three in MS? It might become clear if you move all of the outputs by one row.
Related
I've been having some fun creating a rather extensive inventory in Google Sheets for my collection of trading cards. I buy the majority of my collectibles in lots meaning that I pay a total of X dollars for Y number of cards of different values (as opposed to buying each card individually).
In my spreadsheet I have a "Purchase Price" column where I enter in the price I paid for each card. If I buy 1 lot of 10 cards, to find the value of each of those cards you would just divide the cost of the lot by the number of cards in the lot. So if I purchased 1 lot of 10 cards for a total of $100, the Purchase Price of each card would equal $10. Simple enough right?
Well, that would be if you were OK with entering the rare, uncommon, and common cards in the lot with having the same exact purchase price even though their real market values would all be different. So, what I did was create a formula that automatically adjusts the purchase price for each card that's part of a lot based on its rarity so it's at least closer in accuracy to the actual market value of the card.
Here is the formula:
=IFS(B2="C",D2*$B$15*G2/((D2*$B$15)+(E2*$B$16)+(F2*$B$17))/D2,
B2="U",D2*$B$16*G2/((D2*$B$15)+(E2*$B$16)+(F2*$B$17))/D2,
B2="R",D2*$B$17*G2/((D2*$B$15)+(E2*$B$16)+(F2*$B$17))/D2)
Not sure if that means much to anyone, so here's a link to an example spreadsheet of the formula in action below.
And if you don't care to check that out, here's a screenshot:
The problem:
So the formula works exactly how I want it to work EXCEPT when there are 0 commons in a lot. When that happens I get a #DIV/0! error saying that "Function DIVIDE parameter 2 cannot be zero." I understand why this is happening since it doesn't like to divide by 0 in the first line, but what I don't understand is how to fix it.
How can I fix the DIV error, or is there a better way to do this, perhaps an alternative formula or approach? I am not a programmer and somewhat of a beginner at Excel.
Two suggestions.
Embed each division in an IFERROR() function as shown below. This function will return zero instead of an error. You can substitute another calculation for that. In fact, depending upon which level you introduce the IFERROR at (embracing just one of the three calculations or all three) you might choose to embed the IFS in another IFS that tests for zeroes. Once you have no more divisions by zero there would be no more need for IFERROR. So, it becomes a question of formula efficiency.
=IFERROR(D2*$B$15*G2/((D2*$B$15)+(E2*$B$16)+(F2*$B$17))/D2,0)
Forget about all of this and seek a commercially logical solution. The logic says that you never buy a lot unless it contains some items you want, and the seller never has a lot that doesn't contain rubbish. In the end you get inundated with commons, meaning you have more of them than you can ever hope to sell. So, what's their real, commercial value? Valuate your rare and uncommon cards individually and all the baggage not at all. You will find the outcome more realistic both for the Commons and the Rare. BTW, that's what they do with stamp or coin collections.
I realise this is more a comment than an answer, but it's too large to put it as a comment:
Your formula is unreadable, as you can see:
=IFS(B2="C",D2*$B$15*G2/((D2*$B$15)+(E2*$B$16)+(F2*$B$17))/D2,
B2="U",D2*$B$16*G2/((D2*$B$15)+(E2*$B$16)+(F2*$B$17))/D2,
B2="R",D2*$B$17*G2/((D2*$B$15)+(E2*$B$16)+(F2*$B$17))/D2)
First I'd advise you to create a new column (you might always hide it), I:I, which contains following formula (for I2):
=B2*G2/((D2*const_weigth_common)+(E2*const_weigth_uncommon)+(F2*const_weigth_rare))/D2
(And you give this a meaningful header name)
As far as names for $B$15:$B$17 are concerned, do something like:
$B$15 : const_weigth_common
$B$16 : const_weigth_uncommon
$B$17 : const_weigth_rare
(You do know how to use names in Excel?)
Like this, your formula becomes:
=IFS(B2="C",I2 * const_weigth_common,
B2="U",I2 * const_weigth_uncommon,
B2="R",I2 * const_weigth_rare);
As far as your error is concerned: as mentioned in another answer, this might be tackled using the =IF() formula, so I2 becomes:
=IF(D2<>0;...;_ERROR_VALUE); // up to you how to change your error value
Like this, your formulas become much clearer and it will be easier to solve possible problems.
I Ain't No Math-A-Magician
But I can help you with this...
The way I see it, there are three schools of thought and you need to figure out which one is yours:
The programmer - trapping #div/0 errors all day
The purist - there is only one answer, and it is undefined
The pragmatic - a graph shows results approaching a limit
I think the programmer is either dangerous or ineffectual, or dangerously ineffectual. Sure he can trap there error but what exactly does that do? I'll tell you exactly what that does, it puts lipstick on a pig. It's literally replacing one string, "#div/0!", with a different more aesthetic string. Or he can play second fiddle to the devil and publicly killing the one bug everyone knew how to defend at defend sgainst and creating another?
I think the purist is right about one thing, the answer is what it is and it can't be a anything else; but he's also wrong. A precisely known theoretical answer may very well be undefined, but where in the real world has anyone ever seen division by zero? It's a mathematical construct like infinity, we can safely ignore it. Don't believe me? What happens when you dvide the sun by zero? Go ahead, I'll wait for your answer.
I think these things because I am grounded in pragmatism One string is not better than the other if they both symbolize an attempt to divide by zero. I prefer knowing who my enemies are so I my keep them in front of it me. Nature truly abhorss the undefined and is only slightly displeased with a vacuum.
I am trying to extract the state space from Amidar in order to hard code an agent for some specific purposes. For example, I want the agent to go down whenever an enemy is 2 cells away or up until they hit a wall then go down again. However, I'm not quite sure how to extract the state space at a specific frame, or in general for that instance, and how to go about interpreting the output.
I have tried env.observation_space but that just returns the frame size (i.e: Box(250,160,3)). Anyone have an idea of how to go about doing this?
Thank you.
I have an intent with a simple slot filling question, which gathers a Number-Sequence of 4 characters long.
It looks like this:
The problems are as follows:
There are 3 different phrases defined under the slot filling list. (3rd image above). However, only the first one is prompted twice in a row by the system.
After the phrase is prompted twice, the system exits. I expect it to keep prompting the 3 different phrases round-robin style, until the user gets it right.
Is the maximum number of attempts specified somewhere? Can it be changed?
Can we make it use all of the slot-filling phrases, instead of just the first one?
First thing, if you say your verification code is 4-digit long, you should train your agent for 4-digit code only, I can see it in the first snap that you've trained it for 1-digit code only.
Anyways, now coming to your first question, The number of prompts that you have defined here are variations of each other. Api.ai will randomly select any one of them & send it as a response to the user. You do not have a choice to tell the system which one to be prompted first & which one to be second one neither you can define the cycle of prompts like round-robin.
Now, Answer to your second question, I have tried the same set-up at my end. It keeps on prompting unless & until it receives the correct code. Please check snaps. so, there is no limitation to the number of attempts you can have.
I just joined recently and am really excited to dive into the world of programming. There is still a ton of stuff I don't know, but I'm very proud of myself because I feel like I'm making headway into programming, whereas I used to have a mental block before. I've always been an infrastructure type of gal. But anyway --
I am creating an excel spreadsheet for my new budget. Here is a screencap of my problem (According to rules, new user can't attach images):
http://i66.tinypic.com/hx53zm.png
So this is what I want it to do, logically speaking: Stay blank (B38) until something is entered. Do (B7-B14-B36) if all the fields have something in them. Otherwise, just subtract whatever's in either B14 and/or B36 from B7.
I'm sure it's really simple -- I just lack the knowledge since I'm new. I have been playing around with this for a few days and searching on Google, and I can't figure out how to make it work for my spreadsheet. I have tried the CountA, Count, If, Isblank statements... and just can't get it to go.
This isn't really important to anything in my life, it's just something I'm making for myself to keep my financials in order -- AND to give me practice with some coding.
Thank you for any help you can give me!
Chris
If I understand you correctly, you will want to add the following to B38
=IF(B7 <> ""; B7-B14-B36; "")
Depending on your version of Excel, you may need to replace the ; with ,
How can I alter a string so that variations of approximate string matching can't match it with the original?
I made an IRCbot which runs a game based on the logfile of the channel. It prints quotes from the logs and players collect points by guessing "who said it". The channel is rather geeky and it took no more than 30 minutes for one of the players to build a bot which wins the game every time. I realize manual cheating is also easy and impossible to defend against, but consider this a competition between automated bots. I want to update my bot so that any fully automated bot will not be able to play the game :)
I've considered randomly deleting a character from the quotes, but agrep would still be able to match the string. I've considered replacing some of the characters by similar-looking alternate characters, but that would be trivial to reverse-engineer. I'm looking for ideas that will be harder to break.
Example line:
[14:15] <baobot> [QUOTE 13/15] Who famously declared "minulla ainakin paperin tekemisessä 1% ajasta menee algon suunnitteluun ja 99% menee paperin kirjoittamiseen"?
Print your quote as ascii-art.
Use something similar to the command-line-tools figlet or toilet (explaination).
Here is a quick example: like string2ascii-generator.
To get you started, you might want to copy the sourcecode from figlet.
Anything that can be used to scramble can most likely be unscrambled. Below are some suggestions though for your experiment:
Humans can read words if the first and last letter are in place and the inner portion is scrambled.
You can also do substitution, such as elite speak to replace some characters with numbers.
You might be able to find other characters in other languages that also look familiar to letters that are used, which means you can randomly substitute them as well.
You can also try to randomize the positions of the spaces. So remove them from the original position then move them around, or remove them completely.
Reverse some words.
Find ways to phoneticized words... in english "ph" sounds like "f" so you can find and replace some of them.
Try a combination of different things above, remove all spaces, CaMEl CaSE words, then do character substitutions, etc.
Overall, there are lots of ways to help make it harder, however if you follow a set pattern every time, then it'll be easier to program something to undo it. If you randomly do different things, so one input can yield several different outputs, then it'll be harder for someone to write a program to reverse the process.
Use Google translate.
For example, I ran your quote to Russian, then to English, and back to Finnish, and got
Minulla on ainakin 1% ajasta kirjassa otetaan suunnittelussa Algon ja 99% menee kirjoituspaperia
I have no idea if it is a correct Finnish; as far as I can tell it is still somewhat recognizable. If you think it is too recognizable for an approximate search, do more intermediate translations.