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#### Search: #### Logexpand

-- Option variable: logexpand Default value: `true`

Causes `log(a^b)` to become `b*log(a)`. If it is set to `all`, `log(a*b)` will also simplify to `log(a)+log(b)`. If it is set to `super`, then `log(a/b)` will also simplify to `log(a)-log(b)` for rational numbers `a/b`, `a#1`. (`log(1/b)`, for integer `b`, always simplifies.) If it is set to `false`, all of these simplifications will be turned off.

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

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

### Related Examples

##### logexpand-logsimp-taylor_logexpand

taylor_logexpand;

logsimp;

taylor (log(i1), i1, ...

Calculate

##### logexpand-logsimp-sin-taylor_logexpand

taylor_logexpand;

logsimp;

taylor (sin(i1), i1, ...

Calculate

##### logexpand-logsimp-taylor_logexpand

taylor_logexpand;

logsimp;

taylor (log(i1), i1, ...

Calculate

##### logexpand-ratsimp-true

logexpand:true;

speclog(a,b):=log(b)/...

ratsimp(speclog(4, 32));

Calculate

##### logexpand-logsimp-taylor_logexpand

taylor_logexpand;

logsimp;

taylor (log(i1), i1, ...

Calculate

logexpand:super;

log(a*b);

log(a/b);

Calculate

##### logexpand-ratexpand

logexpand:all;

prod(1/log(k*x) , k, ...

%,ratexpand;

Calculate

logexpand:all;

log(3*x);

Calculate

##### logexpand

logexpand:all;

prod(1/log(k*x) , k, ...

Calculate

##### logexpand-ratexpand

logexpand:all;

prod(1/log(k*x) , k, ...

%,ratexpand;

Calculate 