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-
-
- examplelist:=
- Hold(
- {
- {40!,
- "Simple factorial of a number.
- "
- },
- {D(x)Sin(x),
- "Taking the derivative of a function (the derivative of Sin(x) with
- respect to x in this case).
- "
- },
- {Taylor(x,0,5)Sin(x),
- "Expanding a function into a taylor series.
- "
- },
- {Integrate(x,a,b)Sin(x),
- "Integrate a function.
- "
- },
- {Solve(a+x*y==z,x),
- "Solve a function for a variable.
- "
- },
- {Limit(x,0) Sin(x)/x,
- "Take a limit.
- "
- },
- {Subst(x,Cos(a)) x+x,
- "Substitute an expression with another in the main expression.
- "
- },
- {Expand((1+x)^3),
- "Expand into a polynomial.
- "
- },
- {2^40,
- "Big numbers.
- "
- },
- {1<<40,
- "Bitwise operations
- "
- },
- {1 .. 4,
- "Generating a list of numbers.
- "
- },
- {a:b:c:{},
- "Generating a list of items.
- "
- },
- {[Local(x);x:={a,b,c};Sin(x)^2;],
- "Threading: Sin(..)^2 will be performed on all elements of the list
- passed in.
- "
- },
- {[Local(list);list:={a,b,c,d,e,f}; list[2 .. 4];],
- "Selecting a sublist from a list.
- "
- },
- {Permutations({a,b,c}),
- "Generate all permutations of a list.
- "
- },
- {VarList(a+b*x),
- "Show all variables that occur in an expression.
- "
- },
- {TrigSimpCombine(Cos(a)*Cos(a)+Sin(a)*Sin(a)),
- "Convert factors between trigonometric functions to addition of
- trigonometric functions.
- "
- }
- }
- );
- exampleindex:=0;
-
- Example():=
- [
- exampleindex++;
- If (exampleindex>Length(examplelist),exampleindex:=1);
-
- Local(example);
- example:=examplelist[exampleindex];
- WriteString("Current example : ");
- Write(example[1]);WriteString(";");NewLine();
- NewLine();
- WriteString(example[2]);
- NewLine();
- Eval(example[1]);
- ];
-
-
-