I am studying for a test and I would really appreciate some help with this. The instructions are simply to write these formulas in a shorter version. I understand how IF works; if the expression is true, it returns the first value, otherwise the second one (they are separated by semicolons).
Given examples are:
=D$5+IF(C4>1;F8-A12/4-53;F8-A12/4-B12+1)
=IF(C4="test";A4-55+C13;22+(C13+B2+A4))
=C3*IF(AND(C4="P";C5="P");4*A4/(1-m);m*A4-n*A4);
=IF(B3<>0;2*C6;2*IF(B3=2;SIN(omega*t-$A$2);0)
Explanation will be greatly appreciated.
The first formula can be shortened to:
=D$5+F8-A12/4+IF(C4>1;-53;-B12+1)
It's just a matter of factoring out F8-A12 since it is used twice.
To test this, I filled in some numbers into the cells mentioned, and it produced the correct result.
Similarly in the second formula, A4 and C13 are used twice and they could be factored out to be used only once.
In the third formula, everything is getting multiplied by A4 so it could be factored out.
In the fourth formula, it looks like 2 is the only thing that could be factored out.
Related
This is a general question based not on specific formula - but I couldn't find an answer to it anywhere - but it seems like it should be possible.
In this screenshot, you, Y and X are the same for the sake of example (there is a slight difference, but for example's sake - let's assume it's the same).
In the formula, the same formula is used in an if statement to determine if we should move forward with actually calculating the formula. Is there a way to use lambda not to repeat the formula?
yes you may condense it to something in the sorts of:
=lambda(X,if(X>0,X,0))(*FORMULA*)
a generalized example in the screenshot:
I have been trying to extract the required data from a single cell and I have tried using some common formulas but its not working for all the cells exactly.
I would appreciate your help in this regards.
Google Sheet
Formula 1
=LEFT(A2,FIND(C2,A2)-1)
Formula 2
=SUBSTITUTE(TRIM(SUBSTITUTE(SUBSTITUTE(LEFT(RIGHT(A2,len(A2)-FIND(") ",A2)),6),")",""),"(","")),"|","")
I duplicated your tab and entered the following formula in cell E2:
=ArrayFormula(ifna(regexextract(A2:A,"\[\s\]\s(.+)?\s\((.+)\)")))
Explanation
\[\s\]\s - find [ ]
(.+)?\s\( - extract everything after it until the next occurence of (
(.+)\) - extract everything after the above ( and before the next occurence of )
EDIT: The first time I've tried #ztiaa answer it didn't work... don't know why. I kept investigating REGEX and gave it another try, and it did... You'd probably prefer that. I leave my answer just as a memory, and if it's useful for someone else in another scenario
Honestly, I don't handle regex as #ztiaa, but what I've found difficult about your example is that there are sometimes more than one opening parenthesis... that's why I looked for a way of finding the last appearance of "(". You can learn more about this workaround here
I changed "#" with "CUT HERE" in my example, just in case "#" may appear in your example. With that in mind, you can set these two formulas:
=ArrayFormula(IF(A3:A="","",MID(A3:A,5,FIND("CUT HERE",SUBSTITUTE(A3:A,"(","CUT
HERE",LEN(A3:A)-LEN(SUBSTITUTE(A3:A,"(",""))))-5)))
=arrayformula(if(A3:A="","",mid(A3:A,FIND("CUT HERE",SUBSTITUTE(A3:A,"(","CUT
HERE",LEN(A3:A)-LEN(SUBSTITUTE(A3:A,"(",""))))+1,FIND(")",A3:A,FIND("CUT
HERE",SUBSTITUTE(A3:A,"(","CUT
HERE",LEN(A3:A)-LEN(SUBSTITUTE(A3:A,"(",""))))+1)-FIND("CUT
HERE",SUBSTITUTE(A3:A,"(","CUT
HERE",LEN(A3:A)-LEN(SUBSTITUTE(A3:A,"(",""))))-1)))
The second one is really long because it has to find the amount of characters in between brackets. But it appears to work. Probably there's a more ellegant way with Regex, I repeat :)
Look in J and K of your example:
I have a column with lots of rows containing text. I want to highlight cells with over an x-amount of characters, but how? The code I'm using in combination with 'Conditional Formatting' is not working all the time. Sometimes it highlights text over the x amount and sometimes it doesn't, so there is something I'm doing wrong here. The x-amount in the example below is: 300.
you may also need to lock it like:
=LEN(E$1:E$170)>300
Silly me... I found the answer myself. I need to put in the same range in the formula as well. Formula with the range E1:E170 needs to be: =LEN(E1:E170)>300
EDIT: Disclaimer about the XY problem: The actual, concrete problem I'm trying to solve is: How can I make "recursive" (is that the right term here?) formulas that use infinite ranges in Google Spreadsheets/Excel? The solution I'm working with involves the OFFSET() formula. I'm asking this question because I'd like to get an extensible understanding of the way formulas use and implement ranges, especially infinite ranges.
I'm working in Google Spreadsheets and trying to create ArrayFormulas that will automatically expand without needing to use the fill handle as new data is added in the requisite columns.
To do this, I want to use infinite ranges such as A2:A when I do calculations so that no matter how much data is added, I'll never have to drag-fill any data or formulas and I can just let the spreadsheet iterate and do the work.
I'm running into a problem, though, when I try to use these infinite ranges with the OFFSET() formula. What I'm trying to do is have each cell in the range pull values from a couple of the cells next to it (thus the offset), do a simple calculation with those values, and make that the new cell value. But because the formula interprets the instruction as attempting to offset an entire (infinite) range of values, it returns a #REF! error. Here's a shared example sheet that demonstrates what I'm trying to do.
https://docs.google.com/spreadsheets/d/1V3ldSBoCrzyVWcn66wFBkDOmxt6iuYgtiU_H4KQ6J14/
If for some reason you can't see the formulas, the formulas I'm using are:
C3 =ArrayFormula(Offset(C3:C, 0, -1) - Offset(C3:C, -1, -1))
F4 =Arrayformula(Offset(F3:F, 0, -1) + Offset(F3:F, -1, 0))
Both of these return a #REF! error. C3's alt-text reads: "Error: Result was not automatically expanded, please insert more rows (1)." F3's alt-text reads: "Error: Circular dependency detected."
I'm decently confident why these don't work - you're apparently not allowed to use and refer to ranges this way. I don't, however, know how to fix this.
The two use-cases in the spreadsheet are essentially the same thing, backwards. Chances are if I can figure out one I can reverse-engineer it to work for the other one, but I've had no luck so far.
I've Googled around a lot and while I've never found anything that solves this problem, a lot of similar problems seem to be solved by using the INDIRECT() function. I can't understand how this would apply here, though, that function seems to be strictly for parsing values dynamically from cells with variable input.
(I should probably mention that this data is on a back end sheet and it's getting pulled on another sheet to display some charts on the front end. I wouldn't ask a question here if this data was the only thing involved.)
Any help or a step in the right direction would be appreciated.
If I'm understanding your question, one way to make an offset function expand automatically is to attach a count function, eg. in excel
=offset(C2,,,counta(C:C))
However, this will give you a circular reference error. To address this issue, this is one solution that I have used:
"OFFSET(C3,,,MATCH(9.99999999999999E+307,OFFSET(C3,,,ROWS(C:C)-ROW(C3))))"
This function passes an array based on the last number cell in the column. And for it to be used properly, it needs to be wrapped in a function that can handle arrays, like SUM().
I'm trying to make z3 (I'm using z3py) to simplify some formulas for me (so that I can have more or less human-readable output). Using ctx-solver-simplify tactic seemed a good choice for me since in a couple of passes it would produce nice compact formulas. But soon I've run into a situation when the output of ctx-solver-simplify does not seem to be equivalent to the original formula (it looks more like being satisfiability-equivalent or so). Also, it might be the case that I'm not dealing with tactics correctly.
Here's what I was trying to do: http://rise4fun.com/Z3Py/g5sX. So, I construct a formula Set2 (everything before the definition of Set2 is just a setup needed to define it) which has a particular satisfying assignment. After applying ctx-solver-simplify, I get a single formula (as a goal) for which this assignment is not satisfying. So what am I dong wrong?
Am I wrong assuming that ctx-solver-simplify would produce an equivalent formula?
Am I handling the tactics and their output in the wrong way?
Anything else?
Thanks.
I have been looking into this, but have so far been unable to reproduce the bug directly
with our current branch. A bug in the context simplifier was fixed a little while ago, and it could
be manifesting itself with the online version of Z3.
There are still a few things I can do to double check if we can reproduce the bug
and I will update this post with what I find.