Linear interpolation 4x2 matrix
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Hi everyone,
I have a 4 by 2 matrix (2 columns and 4 rows), looking like this:
0.9259 0.9763
2.5383 2.5090
0.0424 -0.0161
-2.8423 -3.0047
By using linear interpolation, I would like to find out the values of all other rows IF the third row is zero.
The top row represents a horizontal distance , the second row represents the a horizontal velocity, the third row represents a vertical distance and the last one a vertical velocity. I want to find out what the horizontal distance, horizontal speed and vertical speed are IF vertical distance is 0 (which is somewhere between 0.0424 and -0.0161 which is why I need to use interpolation).
Apologizes in advance for my poor Matlab programming skills and my English,
Thank you for your help,
Best regards
Michael
采纳的回答
James Tursa
2015-6-3
>> X
X =
0.9259 0.9763
2.5383 2.509
0.0424 -0.0161
-2.8423 -3.0047
>> f = -X(3,1) / (X(3,2) - X(3,1))
f =
0.724786324786325
>> Y = X(:,1) + f * (X(:,2) - X(:,1))
Y =
0.962429230769231
2.51706376068376
0
-2.9600052991453
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