How to search a element or a number in lookup table

hi, How to make a LUT of 2-dimensional, and also how to search a number or an element in the developed lookup table by using simple matlab commands( not using simulink preferably)?

thanks, sridhar

There are many possible approaches to making something like a lookup table in MATLAB. I suggest you add significant more detail to your question, so that we can narrow the suggestions we might make.

thanks for replying my question....

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).

Answer 1

[mindiff, row] = min( (YourTable(:,2) - V1).^2 + (YourTable(:,3) - V2).^2 );