Some commands in SymbMath have changed in different versions.

**************** Changes from Version 1.3 to 1.4 ******************
1. inte(f(x), (x from a to b)) -> inte(f(x), x from a to b).
2. Lists, arrays, vectors and matrices: (a,b,c) -> [a,b,c].
3. Zoom the HELP Mode window: <ctrl><F10> -> <F5>.
4. <Ctrl>P for printing -> <Alt>P for the Print Mode.

************* New functions in Version 1.4 ***********************
1. Standard functions: n!, abs(x).
2. Transformation functions: sum(), prod(), list(), table(), coef().
3. Calculus functions: d(f(x)/d(x), order), d(f(x), x=c, order).
4. Users-defined functions name can be any name.
5. Integrals of x^n*exp(x), x^n*sin(x), etc. where n>0.
6. The function solve() can solve systems of equations, and linear 
differential equations on one step, 

solve([a1*x+b1*y==c1, a2*x+b2*y==c2], [x,y])
solve(d(y)/d(x)+g(x)*y==h(x), y)

7. SymbMath can learn differentiation.
8. The nth element of list x is x[n], ...
9. More library (e.g. for infinite sum, etc.).
	The erros have been fixed if possible.

****************** Changes in Version 2.0 *******************
1. The user-interface changed to the pull-down menus, pop-up menus.
2. The assignment statement is evaluated.
3. Define a user funcrion by define(f(x)=x^2), instead of f(x)=x^2.
4. Clear a variable or function by clear(x) or clear(f(x)), instead of
   x=x or f(x)=f(x).
5. Bugs (e.g. some integration by parts) have been fixed.
6. The simplification subroutine is re-written, so the expression is 
   simplier than before.

*************** New function in Version 2.0 ******************
1. The twin screen text editor.
2. The functions: assume(), deno(), nume(), etc.
3. Learning integrals from derviatives and others.
4. All standard functions can be differentiated and integrated 
   symbolically.
5. The dictionary help.

Please read the document file SymbMath.DOC and SymbMath.DO2 for detail.