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

Algebra Calculator

#### Derivsubst

-- Option variable: derivsubst Default value: `false`

When `derivsubst` is `true`, a non-syntactic substitution such as `subst (x, `diff (y, t), diff (y, t, 2)) yields diff (x, t).

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

### Related Examples

##### derivsubst-diff-display2d-false-fullratsimp-true

display2d:false;

derivsubst:true;

eq:6*diff(1/f(x), x, ...

Calculate

##### derivsubst-diff-display2d-false-fullratsimp-true

display2d:false;

derivsubst:true;

eq:4*diff(1/f(x), x, ...

Calculate

##### derivsubst-diff-display2d-false-fullratsimp-true

display2d:false;

derivsubst:true;

eq:3*diff(1/f(x), x, ...

Calculate

##### derivsubst-diff-display2d-false-true

display2d:false;

derivsubst:true;

eq:3*diff(1/f(x), x, ...

Calculate

##### derivsubst-diff-display2d-false-fullratsimp-true

display2d:false;

derivsubst:true;

eq:4*diff(1/f(x), x, ...

Calculate

##### derivsubst-diff-display2d-false-fullratsimp-true

display2d:false;

derivsubst:true;

eq:4*diff(1/f(x), x, ...

Calculate

##### derivsubst-diff-display2d-false-fullratsimp-true

display2d:false;

derivsubst:true;

eq:4*diff(1/f(x), x, ...

Calculate

##### derivsubst-diff-display2d-false-true

display2d:false;

derivsubst:true;

3*diff(1/f(x), x, 2)/...

Calculate

##### derivsubst-diff-display2d-false-fullratsimp-true

display2d:false;

derivsubst:true;

eq:3*diff(1/f(x), x, ...

Calculate

##### derivsubst-diff-display2d-false-true

display2d:false;

derivsubst:true;

3*diff(1/f(x), x, 2)/...

Calculate