Matrix Multiplication With Complex Numbers 

Matrix Multiplication With Complex Numbers  Excel 
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i was trying to multiply 2 by 2 matrix using complex numbers, but im getting "#value" as the answer. i used =mmult(array1,array2) function and Ctrl+Shift+Enter. But its still showing "#value" as the result. I even wrote the complex number "i" as =complex(0,1). like the matrix is
A = 1 i (1st row of A
i 1 (2nd row of A
B = 4 (1st row of B
3 (2nd row of B
So how do i write the function to multiply Matrices A by B. Can somebody help me out on how to do this?
thanx in advance.
A = 1 i (1st row of A
i 1 (2nd row of A
B = 4 (1st row of B
3 (2nd row of B
So how do i write the function to multiply Matrices A by B. Can somebody help me out on how to do this?
thanx in advance.
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Hello,
I am new to using Excel and I am not very computer literate. I am looking for some help with a spreadsheet I am making. Here is the problem:
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Thanks,
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I am new to using Excel and I am not very computer literate. I am looking for some help with a spreadsheet I am making. Here is the problem:
I have a column of 14 numbers in cells A1 to A14. If all of these values are less than 2%, I would like a "Pass" to display in cell B1. If any of these values are greater than 2% I would like a "Fail" to display in cell B1.
I have got a formula that works for a single cell but I can't figure out how to get it to apply to more than one cell. For example, I have entered =IF(A1<2,"Pass","Fail") in cell B1. Now if the value I enter in A1 is less than 2, it shows a "Pass", and if the value in A1 is greater than 2 it shows a "Fail" in cell B1. How can I get this to apply to all of the cells from A1 to A14?
If somebody could help me out that would be great.
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It might just be that I don't know what this means in Help:
"color" > 1 if the cell is formatted in color for negative values;
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colored in a formula.
=CELL("color",cell)
It might just be that I don't know what this means in Help:
"color" > 1 if the cell is formatted in color for negative values;
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James
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Thanks
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Thanks
Hi all 
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Thanks!!!
Matt
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a) is this possible?
If not, I'd like to know also so I can stop attempting to guess (;
Thanks!!!
Matt
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Thanks in advance for your help.
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Thanks in advance for your help.
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Thanks
=IF(C13=0,","SUM(C9C8))OR,IF(C9,ISBLANK,"",SUM(C9C8)
On the attached timesheet there are columns IN, OUT, IN,OUT
The lunch time is worked out by deducting 'C8 from C9' and this works fine when all 'IN, OUT' cells are filled in but for some reason when just the first two cells are filled in it gives a 12 hour answer.
looking at cell 'C11 ' in the attached worksheet, I currently have the formula
=IF(C13=0,","SUM(C9C8)) The reason for this is to make it look tidy by having blank cells until a calculation is needed,, My problem is, If someone just comes in for the morning one day for instance 8am to 12 noon then they won't have lunch, but C11 will show 12:00
Can I put another formula into C11 to tell it not to deduct C8 from C9 until a time is put into C9.
The following is the sort of thing (many variations) I have been trying but because I'm hopeless at formulas I'm not having any success
Thanks
=IF(C13=0,","SUM(C9C8))OR,IF(C9,ISBLANK,"",SUM(C9C8)
Hi,
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Please HELP!!!
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Thanks all!
I'd like to do this in Excel, but I can't figure out how to have a randomly generating nonrepeating macro with text values in cells.
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/ />
Thanks all!
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Cut as many of the longest cut lengths possiable.....Cut as few of the shortest cut lengths possiable
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Any and all advice/help would be appricated.....
I have various cut lengths that I can pick from...
14'10".....13' 9".. 12'8"........(up to 6 different lengths)
I need to know the best combination of lengths to cut the long bar into to have minimal scrap left when we get to the end of the 550 feet.....
Cut as many of the longest cut lengths possiable.....Cut as few of the shortest cut lengths possiable
Due to the fact that I will have to convert this to a PLC application when completed, I want to find a mathmatical way to do this inside excel and not use the "solver"....Assuming that I/we can come up with an equation to do this .....
Any and all advice/help would be appricated.....
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Thanks!
charitydc
=Sum(I25:I32) Formula but I want to multiply the outcome of that formula by the hourly rate of 11.00, 15.00 and 16.00. Does anybody know how this can be done? If so I would greatly appreciate it.
Thanks!
charitydc
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my text entries are rather lengthy. The past two weeks these lengthy entries
are showing up as pound signs (#########) when I click off the cell. I know
the text will fit in the cell, and the problem isn't solved by making the
cell bigger or using a little bit less text. I have the cells formatted as
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Hey
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I have three columns containing last name values from 3 different sources that I've brought into one sheet. I am trying to find a way to compare all three values to establish if they are the same.
Of the three values there is no master, Each value may be different. So essentially it would be like doing =IF(a1=a2=a3,"match", "nomatch")
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Thanks for any help anyone can provide.
Aaz
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Thanks to all the wonderful people here that have been so helpful and
give us their valuable insight and time.
Jo
an object, I see how I can "lock", "size and move with cells" or "not
move with cells". No matter what I select, the object moves off the
screen, when the user, scrolls to the right of the spreadsheet.
Is there a way to lock the position, let's say, in the upper right
corner and have it stay there?
This would be quite useful for an EXIT button, that I have created,
that will close the program without saving (it's a readonly file.)
Thanks to all the wonderful people here that have been so helpful and
give us their valuable insight and time.
Jo
How do I set the formula if
if F1...I1 <10 = Pass, >=10 Fail (and highlighted red), and any cell between F1....I1 is empty = blank
if F1...I1 <10 = Pass, >=10 Fail (and highlighted red), and any cell between F1....I1 is empty = blank
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We will be building 8 "widgets" a day.
We will work 10 hours a day.
There is a 20 minute break at 9:20 am.
Production shuts down for lunch 30 minutes for lunch at 12:30.
Production starts at 6:00 am.
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This is the formula I am trying to make work. I have the cell the formula is in, formatted with a "mm,ss" format.
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I have included an attachment to help (a picture is worth a thousand words).
Any help will be greatly appreciated.
I have bought a number of books in an attempt to figure this out, and I am still stumped
We will be building 8 "widgets" a day.
We will work 10 hours a day.
There is a 20 minute break at 9:20 am.
Production shuts down for lunch 30 minutes for lunch at 12:30.
Production starts at 6:00 am.
Here is what I can do.
Production cycle time = (10*60)30/8 or 71.25 minutes
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My problem is when I am trying to use a logical "IF' statement to account for the 20 minute break or lunch and still calculate the end of each cycle time through the day I receive a number of error messages.
This is the formula I am trying to make work. I have the cell the formula is in, formatted with a "mm,ss" format.
=(IF(D4+G1/1440>9:20,(D4+G1)/24,(D4+G1+15)/1440))
I have included an attachment to help (a picture is worth a thousand words).
Any help will be greatly appreciated.
I have bought a number of books in an attempt to figure this out, and I am still stumped
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I hope this makes sense. Thank you in advance for any help.
For example, suppose you have tables of data on 3 different tabs, all having the same headings. Suppose one of the headings is "gender". If you apply a filter to the table on Sheet 1, to only show the rows containing the word "female", is it possible to have the tables on Sheets 2 and 3 automatically update to only show the "female" rows? Or would you have to manually update the filter criteria in Sheets 2 and 3?
I hope this makes sense. Thank you in advance for any help.
Hello,
I'm trying to set up a basic formula to clear out unwanted cells. Basically, if the cell is not equal a number, I'd like it to be cleared of any information. I would rather not use a space, because I have text that is overlapping between cells and would like it to be legible.
Here's the basic formula:
=if(A1>0, A1, ???)
Any help would be great. Thanks!
I'm trying to set up a basic formula to clear out unwanted cells. Basically, if the cell is not equal a number, I'd like it to be cleared of any information. I would rather not use a space, because I have text that is overlapping between cells and would like it to be legible.
Here's the basic formula:
=if(A1>0, A1, ???)
Any help would be great. Thanks!
Hi All,
I got the below macro which uses IE and open the URLs. I want to create a userform with listbox with radio button and commandbutton on the same which will help me to connect to each url when I select the same in listbox and click on the commandbutton.
Code:
Any suggestions..
I got the below macro which uses IE and open the URLs. I want to create a userform with listbox with radio button and commandbutton on the same which will help me to connect to each url when I select the same in listbox and click on the commandbutton.
Code:
Sub DoBrowse1() Dim ie As Object Set ie = CreateObject("Internetexplorer.Application") ie.Visible = True ie.Navigate "google.com" End Sub
Any suggestions..
How do I get the colors to change automatically when I use a drop down list.
Per say here is what I am trying to do
If a certain "word" is used from the drop down list I want the background of
that cell to change its color to "green." And if later I change the "word" to
another from the drop down list, it will change it's color to a specified
color.
The drop down list that I use was created from cells that have the colors
already in the "word", but I do not know how to make the list show the colors
so it puts the word & color automatically in the drop down list to the cell
with the drop down (if that makes any sense).
If there is a way, please spell it out simple enough for me to understand,
as I don't know fully the capabilities of formulas or vba.
Per say here is what I am trying to do
If a certain "word" is used from the drop down list I want the background of
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another from the drop down list, it will change it's color to a specified
color.
The drop down list that I use was created from cells that have the colors
already in the "word", but I do not know how to make the list show the colors
so it puts the word & color automatically in the drop down list to the cell
with the drop down (if that makes any sense).
If there is a way, please spell it out simple enough for me to understand,
as I don't know fully the capabilities of formulas or vba.