Conjugate Gradient (Positive Definite Matrix Linear System)
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Time Complexity
$O(m k^{0.5})$
Space Complexity
$O(m)$ words
(http://www.cs.cmu.edu/~quake-papers/painless-conjugate-gradient.pdf)
Description
Approximate?
Approximate
Approximation Factor:
Randomized?
No, deterministic
Model of Computation
Word RAM
Year
1952
Reference
https://nvlpubs.nist.gov/nistpubs/jres/049/jresv49n6p409_A1b.pdf