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The Maxima on-line user's manual

Algebra Calculator

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Simp Calculator

Simp

-- Option variable: simp Default value: true

simp enables simplification. This is the standard. simp is also an evflag, which is recognized by the function ev. See ev.

When simp is used as an evflag with a value false, the simplification is suppressed only during the evaluation phase of an expression. The flag can not suppress the simplification which follows the evaluation phase.

Examples:

The simplification is switched off globally. The expression sin(1.0) is not simplified to its numerical value. The simp-flag switches the simplification on.

          (%i1) simp:false;
          (%o1)                                false
          (%i2) sin(1.0);
          (%o2)                              sin(1.0)
          (%i3) sin(1.0),simp;
          (%o3)                          .8414709848078965

The simplification is switched on again. The simp-flag cannot suppress the simplification completely. The output shows a simplified expression, but the variable x has an unsimplified expression as a value, because the assignment has occurred during the evaluation phase of the expression.

          (%i4) simp:true;
          (%o4)                                true
          (%i5) x:sin(1.0),simp:false;
          (%o5)                          .8414709848078965
          (%i6) :lisp $X
          ((%SIN) 1.0)

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

(%o1)                                true
(%i2) 

Simp Example

Related Examples

simp

e(x,y) := x^2 + (x+1)...

e(x,y),expand,simp;

e(2*u,y),expand,simp;

Calculate

simp-true

(1-p1)*(1-p2)*(s1+s2)...

Calculate

simp-sqrt

2*sqrt(5*r*(sqrt(3)*r...

Calculate

simp

38*a^4+19*a^2,simp;

Calculate

simp-solve-subst

a: 4*x^2-2*x+5;

b: y=x+1;

c: solve(b,x);

Calculate

simp

f(z) := ( z^3*(1-3*z...

f(1/z) , simp;

Calculate

simp

f(z) := ( z^3*(1-3*z...

(1 + 1/z) * (1 + 2/(z...

Calculate

simp-true

1/7, simp : true ;

Calculate

simp

(6.62606957e-34)^2/(2...

Calculate

simp-true

simp: true;

e1: l1*a1^2 + l2*a2^2;

e2: l1^2*al^2 + l2^2*...

Calculate