Matrix of cross product on a HP 50 g
I'm doing a cross product of a vector.
-30k
0.1I + 0,173j
When I have this entry in the matrix and then drive choose the vector product out VECTOR - CROSS menu, I get "cross error: bad Argument Type.
What I am doing wrong? I tried to go through the manual and it is not much help.
Thank you!
Hello
Enter it in quotation marks simple (MTRW button), that is:
'-30 * k'
Also note that when you enter the vectors in the matrix writer, don't forget to check the VEC selection:
(Notepad next to VEC)
Otherwise the calculator will interpret it as a matrix, even if there is only a single line (you will see thick material so thin instead).
It is a matrix:
and it is a vector:
Kind regards
Bart
Tags: HP Tablets
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Rider wrote:
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of comqdhb.subject@glink sb,comqdhb.student@glink s,comqdhb.gradevalues@glink g;You should not write, not to mention not formatted zip code. I have a little time I can devote to answering questions in the forum. Do you want me
b spend this time formatting your code, so I can understand the question, and no time to answer, or
b spend only a little time reading understanding your code and spend most of my time to help you?
I would prefer (b), but the choice is yours.
See the statement that I posted in my last post for an example of the formatted code. You see how it appears in a box with a police fixed-width, and multiple spaces are printed? This is because I typed {code} (all small letters), before and after the section I wanted formatted.At least put each table in the FROM clause on a separate line, so it is easy to know if you have enough join conditions.
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No no no join conditions will cause "repetition involved due to the cross product.
I downloaded my info here
http://www.upload4free.com/download.php?file=44201983-School_ExamGrades.PDF
http://www.upload4free.com/download.php?file=184648736-ExamGrades_Case_Study_2008FINAL.PDFSorry, if there is data as long as you can't post here, there is much too much for me to read.
Make a sample set, containing a few (maybe five) students and a few shades of each student. It is fine to copy a few lines of your actual data.That's all the time I have for today. I can't wait to get the data and formatted requests.
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DariyooshHello
dariyoosh wrote:
... Oracle terminology could become really confusing. But once again, according to the online glossary, a Cartesian product is apparently regarded as a join
http://docs.Oracle.com/CD/E11882_01/server.112/e25789/glossary.htm?type=popup#CNCPT44493
>There is no doubt that a Cartesian product (also called cross join) is a join. If loops in a WITH recursive clause are detected after completing the joins, but before other conditions apply, the relevant question here is "what are the requirements to join?
In the ANSI syntax, the distinction is always clear. Join conditions occur in the... Clause WESELECT employee_id, manager_id, lvl + 1 FROM employees JOIN tmptab ON (manager_id = empId) -- Join condition ;
and other conditions occur in the WHERE (or HAVING or CONNECT BY) clause.
SELECT employee_id, manager_id, lvl + 1 FROM employees CROSS JOIN tmptab WHERE (manager_id = empId) -- NOT a join condition ;
In the joins of the former, it seems to be the case that any condition involving 2 or more tables (or the + indicator of outer join) is a condtion of join:
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