### The Maxima on-line user's manual

Algebra Calculator

#### Var

Function: var (<list>)

Function: var (<matrix>) This is the sample variance, defined as n ==== 2 1 \ _ 2 s = - > (x - x) n / i ==== i = 1

Example:

```          (%i1) load (descriptive)\$
(%i2) s1 : read_list (file_search ("pidigits.data"))\$
(%i3) var (s1), numer;
(%o3)                   8.425899999999999```

See also function `var1`.

There are also some inexact matches for `var`. Try `?? var` to see them.

```(%o1)                                true
(%i2) ```

### Related Examples

##### var

f(mu,phi,var):=(-.5*(...

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##### var

f(mu,phi,var):=(-.5*(...

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##### var

var (p, q, l, fx, e, ...

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var: "var";

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var: rand(10);

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##### var

var (p, q, l, fx, e, ...

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var: rand(10);

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##### var

var (p, q, l, fx, e, ...

eq1: nx=p+q*x;

eq2: sx=nx/fx;

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##### var

var (p, q, l, fx, e, ...

eq1: nx=p+q*x;

Calculate

##### var

Va:sigma^2/n*(1+x_av^...

Vb:sigma^2/n/s_x^2;

Covab:-sigma^2*x_av/n...

Calculate