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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-true

a/b, simp:true;

Calculate

simp

bet=pi-2*phi0;

xsq=1-x^2/2-x^4/8-x^6...

lt1_var = xsq-1+g*x/d...

Calculate

simp

aa:((s*r-s-a-m))/((s+...

rr=(aa*(s+a-m)+(1-aa)...

simp;

Calculate

simp

x*4+y-2-y=0,simp;

Calculate

simp

s(p,a,b,c):=p(p-a)(p-...

Calculate

simp-sqrt

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

e(sqrt(k),y),expand,s...

Calculate

simp-sqrt-true

(6+sqrt(52))/8;

6/8+sqrt(52)/8;

simp:true;

Calculate

simp-true

1/7, simp : true ;

Calculate

simp-true

1/7, simp : true ;

Calculate

simp-sqrt

eq1:sqrt(4*x-3)=6;

simp:eq1;

Calculate