diff

diff(rat[,varn]*)

diff(rat,varlist)

:: Differentiate rat successively by var's for the first form, or by variables in varlist for the second form.

return

expression

rat

rational expression which contains elementary functions.

varn

indeterminate

varlist

list of indeterminates

• Differentiate rat successively by var's for the first form, or by variables in varlist for the second form.
• differentiation is performed by the specified indeterminates (variables) from left to right. diff(rat,x,y) is the same as diff(diff(rat,x),y).

[0] diff((x+2*y)^2,x);  
2*x+4*y
[1] diff((x+2*y)^2,x,y);
4
[2] diff(x/sin(log(x)+1),x);
(sin(log(x)+1)-cos(log(x)+1))/(sin(log(x)+1)^2)
[3] diff(sin(x),[x,x,x,x]);
sin(x)

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