SQRT Square Root of an Array

Section: Mathematical Functions

Usage

Computes the square root of the argument matrix. The general syntax for its use is
   y = sqrt(x)

where x is an N-dimensional numerical array.

Example

Here are some examples of using sqrt
--> sqrt(9)
ans = 
  <double>  - size: [1 1]
 3  
--> sqrt(i)
ans = 
  <complex>  - size: [1 1]
 0.70710677+0.70710677 i  
--> sqrt(-1)
ans = 
  <dcomplex>  - size: [1 1]
 6.123031769111886e-17+1.000000000000000e+00i  
--> x = rand(4)
x = 
  <double>  - size: [4 4]
 
Columns 1 to 3
 0.30321237556395952  0.88194882640444583  0.08364828321231343  
 0.89000870990351189  0.28718737336883804  0.85652864497748205  
 0.24228626078925408  0.60644730246736522  0.38520056617787590  
 0.64087763657404362  0.18691431309757034  0.92958575403063803  
 
Columns 4 to 4
 0.64442638307431366  
 0.70020763274943776  
 0.58484919732966401  
 0.84041505600660127  
--> sqrt(x)
ans = 
  <double>  - size: [4 4]
 
Columns 1 to 3
 0.55064723332089804  0.93912130547892791  0.28922012933458391  
 0.94340272943399517  0.53589865960724148  0.92548832784507984  
 0.49222582296061435  0.77874726482175538  0.62064528208782499  
 0.80054833493927380  0.43233587995627931  0.96415027564723443  
 
Columns 4 to 4
 0.80276172247704591  
 0.83678410163520545  
 0.76475433789529035  
 0.91674154264252761