Name: Potens
Def: $a^b$ Multiplicerar a med sig själv b gånger. Tex $3^5=3*3*3*3*3$.
Type: \^\(Real,Real\)
Out: Real
PrMathML: "<msup><mrow>$p[0]</mrow>$p[1]</msup>";
NoParamMathML: $i==1;

Name: Addition
Def: $a+b$ Startar i $a$ och går $b$ steg framåt längs tallinjen.
Type: \+\(Real(,Real)+\)
Out: Real
Prop: Ass, Com
PrMathML: "<mrow>".join ("<mo>+</mo>", @p)."</mrow>";

Name: Divition
Type: \/\(Real,Real\)
Out: Real
Simp: a*inv(b)
PrMathML: "<mfrac> $p[0] $p[1]  </mfrac>";
NoParamMathML: 1

Name: Subtraktion
Type: \-\(Real,Real\)
Out: Real
Simp: a+neg(b)
PrMathML: "<mrow>".join ("<mo>-</mo>", @p)."</mrow>";

Name: Multiplikation
Def: $a*b$ adderar a till sig själv b gånger. Tex $2*4=2+2+2+2$.
Type: \*\(Real(,Real)+\)
Out: Real
Prop: Ass, Com
PrMathML: "<mrow>".join ("<mo>*</mo>", @p)."</mrow>";

Name: Invärs
Def: Invärsen $inv(a)$ definieras genom ekvationen $a*inv(a)=1$.
Type: inv\(Real\)
Out: Real
PrMathML: "<mfrac> <mn>1</mn> $p[0] </mfrac>";

Name: Negation
Def: Negationen $neg(a)$ definieras genom ekvationen $a+neg(a)=0$.
Type: neg\(Real\)
Out: Real
PrMathML: my ($p1,$p2)=("",""); if($self->{'Opps'}[0]{'Type'} eq 'Opp') {$p1='<mo fence="true">(</mo>';$p2='<mo fence="true">)</mo>'}; '<mrow><mo fence="true">(</mo><mo>-</mo>'.$p1.$p[0].$p2.'<mo fence="true">)</mo></mrow>';

Name: Kvadratroten
Def: Rooten $sqrt(a)$ definieras av ekvationen $a=sqrt(a)^2$.
Type: sqrt\(Real\)
Out: Real
PrMathML: "<msqrt>$p[0].</msqrt>";