— Operator: **differential**` expr`

— Operator:**'**` expr`

— Operator:

The Jacal command

`differential`

computes the derivative of the expressionexprwith respect to a generic derivation. It is generic in the sense that nothing is assumed about its effect on the individual variables. The derivation is denoted by a right quote.e6 : differential(x^2+y^3); 2 e6: 2 x x' + 3 y y' e7 : (x^2+y^3)'; 2 e7: 2 x x' + 3 y y'

— Command: **diff**` expr var1 ...`

The Jacal command

`diff`

computes the derivative of the expressionexprwith respect tovar1, ....e6 : diff(x^2+y^3,y); 2 e6: 3 y