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In computer science, a lookup table (LUT) is an array that replaces runtime computation with a simpler array indexing operation, in a process termed as direct addressing.The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an "expensive" computation or input/output operation. [1]
In the second line, the number one is added to the fraction, and again Excel displays only 15 figures. In the third line, one is subtracted from the sum using Excel. Because the sum in the second line has only eleven 1's after the decimal, the difference when 1 is subtracted from this displayed value is three 0's followed by a string of eleven 1's.
As with row-addition, algorithms often choose this angle so that one specific element becomes zero, and whatever happens in remaining columns is considered acceptable side-effects. A Givens rotation acting on a matrix from the right is instead a column operation, moving data between two columns but always within the same row.
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If the function is applied to any other column k of A, then the result is the determinant of the matrix obtained from A by replacing column j by a copy of column k, so the resulting determinant is 0 (the case of two equal columns).
China's top electric vehicle maker BYD gained market share as the world's largest auto market recorded its fastest-growing month in 2024, setting BYD up to exceed its global annual sales goal and ...
This six-pack of clear storage tote tubs is just about the most useful organizer item you can buy. Use them to store Christmas ornaments, garlands, lights, decorations and much, much more.
As a former Al Qaeda fighter with a U.S. bounty on his head, experts say Abu Mohammad al-Jolani's first challenge has been proving to the world that he himself is a changed man.