search in Lookup table.

Asked by Reddy on 6 Jul 2012
Latest activity Answered by Fa Fa on 8 Aug 2012

hi, I have to develop a search in lookup table, the following task has to be performed. suppose assume the following lookup table as an example.

deg sine_value cosine_value; 0 0 1; 30 0.5 0.866; 45 0.707 0.707; 60 0.866 0.5 ; 90 1 0;

with the above lookup table as reference, i need to locate a sine_value first, and then i need to search for cosine value which matches with the row of sine_value. After both the values are retrieved then, the corresponding angle should able to retrieved in the angle column.

for example: first a search is made to find a value 0.5 in sine_value column, then a search is made to find a value 0.866 in cosine_value column. if both lies in same row then, the corresponding value in the angle column is retrieved... can u please help me how to develop this logic in mat lab( using simple mat lab commands).

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Answer by Fa Fa on 8 Aug 2012

Hi,i like to understand this function in matlab, f = @(x) (sum(x(:)) >= 2); lut = makelut(f,2);

the Question:how he get the result from 0 to 15; 0 0 0 1 0 1 etc;

Thank for help