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The Maxima on-line user's manual

Algebra Calculator

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Del Calculator

Del

Function: del (<x>) del (<x>) represents the differential of the variable x.

diff(sin(x/a),del(x));

diff returns an expression containing del if an independent variable is not specified. In this case, the return value is the so-called "total differential".

Examples:

          (%i1) diff (log (x));
                                       del(x)
          (%o1)                        ------
                                         x
          (%i2) diff (exp (x*y));
                               x y              x y
          (%o2)            x %e    del(y) + y %e    del(x)
          (%i3) diff (x*y*z);
          (%o3)         x y del(z) + x z del(y) + y z del(x)

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

(%o1)                                true
(%i2) 

Del Example

Related Examples

del-diff-sin

diff(sin(x/a),del(x));

Calculate

del-sqrt

xK: [8.64066, 9.83436...

yK: [6.1, 10.4, 13.3];

xK1: [12.8953, 13.64,...

Calculate

del-ode2

ode2(del(y)/del(x) = ...

Calculate

del-sqrt

xK: [8.64066, 9.83436...

yK: [6.1, 10.4, 13.3];

xK1: [12.8953, 13.64,...

Calculate

del-diff-sin

diff(sin(x/a),del(x));

Calculate

del-diff

a1 = 1;

b1 = -2*((1/2)*((s - ...

c1 = ((1/2)*((s - x)^...

Calculate

del

int(del(x));

Calculate

del-diff

u:x+y^2*x;

diff(u);

diff(u,x)*del(x)+diff...

Calculate