OpenGL ES Multiple Indices
OpenGL ES multiple indices
If you have a lot of quads (with shared vertices), but each quad needs its own texcoords, you can not use shared vertices, but each quad has to be defined separately. It's better to use interleaved arrays in each case, because you have stored all attributes for one vertex consecutively in memory. So if you are trying to read for example vertex position, also some surrounding data from memory (in your case color and texcoords) are send to cache. If you have a lot of data, it's more efficient. And you do not have to use glDrawElements in this case, you can just use glDrawArrays (you do not have to pass indices, if they are just sequence of increasing numbers).I also hope, you are using VBOs (data are stored in GPU memory instead of system memory).
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Is the US in recession due to COVID-19 when the stock market indices keep going up? Where is the disconnect?
It's simple: wealthy Republican Trump supporters are buying right now in order to keep the Market artificially propped up until the election. This is to make it appear that the economy is coming back, that America is doing just fine under 'Dirty Don'. It's almost like they are making a 'campaign contribution'. After the election, regardless of the outcome, the Market will drop again as the reality of living in a 'Covid economy' sets in again
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Where are you looking if the indices i and j are equal in a square matrix?
i and j are the indices of the row and column of the matrix. Think about it. All matrix elements with row the same as the column are the diagonalk elements from upper left to lower right
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Overcoming "too many indices for array†error when loading file into Orange
I had the same issue, also trying to read a .csv file. it assumes that your .csv file is not formatted correctly. In my case, the csv file had the correct number of indices, and was validated as not corrupted (using the freeware software 'CSVed'). I was able to load my dataframe by saving the csv as a .xlsx (Microsoft Excel). It loaded fine. Interestingly, exporting back to .csv recreated the error!
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Indices, Drop before Loading and Create after Loading
Suppose you have a table testAdd a UNIQUE CONSTRAINTExamine your table:Now, we can see that our unique constraint fred_ux is there. To drop it, we simply do:Luckily, we can chain these - i.e. you can write (details here)Examine table test again:Et voil! fred_ux is gone!To restore your indices after whatever your load process is, you simply rerun the commands which created them in the first place. In order to have a record of these commands, then BEFORE you drop your indexes, run the command./bin/pg_dump -s -t my_table my_schemaand pump the output to a file. In that file, you will have all the information you require to recreate that table, including any indexes, constraints &c. COPY is way quicker than using INSERTs. However, COPY has one major flaw - if there's even one dodgy record, the entire batch will fail - there's no recovery mechanism. You might want to look at pg_loader - you can find a basic outline here
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Bond indices
A number of bond indices exist for the purposes of managing portfolios and measuring performance, similar to the S&P 500 or Russell Indexes for stocks. The most common American benchmarks are the Barclays Capital Aggregate Bond Index, Citigroup BIG and Merrill Lynch Domestic Master. Most indices are parts of families of broader indices that can be used to measure global bond portfolios, or may be further subdivided by maturity or sector for managing specialized portfolios.
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Dotted indices
Undotted indices (chiral indices)Spinors with lower undotted indices have a left-handed chirality, and are called chiral indices. l e f t = ( 0 ) displaystyle Sigma _mathrm left =beginpmatrixpsi _alpha 0endpmatrix Dotted indices (anti-chiral indices)Spinors with raised dotted indices, plus an overbar on the symbol (not index), are right-handed, and called anti-chiral indices. r i g h t = ( 0 ) displaystyle Sigma _mathrm right =beginpmatrix0bar chi ^dot alpha endpmatrix Without the indices, i.e. "index free notation", an overbar is retained on right-handed spinor, since ambiguity arises between chiralty when no index is indicated.
