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The Maxima on-line user's manual

Algebra Calculator

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Num

Function: num (<expr>) Returns the numerator of <expr> if it is a ratio. If <expr> is not a ratio, <expr> is returned.

aInitialValue_num: 1.0;
aFinalValue_num: 1.0;
aDuration_num: 4.0;
lSignedAmplitude_num: (aFinalValue_num - aInitialValue_num) / 2 + 1.0;
plot2d(-(aCurrentTime_num * aDuration_num/2) ^ 2,[aCurrentTime_num,0,aDuration_num]);

num evaluates its argument.

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

(%o1)                                true
(%i2) 

Related Examples

num-rat-rhs-solve

eqa: (x-xa)^2+(y-ya)^...

eqb: (x-xb)^2+(y-yb)^...

eqc: (x-xc)^2+(y-yc)^...

Calculate

num-plot2d
plot2d(-aCurrentTime_num ^ 2 - aDuration_num/2,[aCurrentTime_num,0,aDuration_num]);

aInitialValue_num: 1.0;

aFinalValue_num: 1.0;

aDuration_num: 4.0;

Calculate

num-plot2d
plot2d(aCurrentTime_num^2,[aCurrentTime_num,0,aDuration_num]);

aInitialValue_num: 1.0;

aFinalValue_num: 1.4;

aDuration_num: 4.0;

Calculate

num-sum

num : sum(y[i] * t[i]...

Calculate

num

num : 12^3 * 6^(-3) *...

den : 2^(-5) * 3^5 * ...

num/den;

Calculate

num-plot2d
plot2d(aCurrentTime_num,[aCurrentTime_num,0,aDuration_num]);

aInitialValue_num: 1.0;

aFinalValue_num: 1.4;

aDuration_num: 4.0;

Calculate

num

eq1:1/2;

num(eq1);

Calculate

num-plot2d-sin
plot2d(aInitialValue_num + 0.2 * 0.5 * (1 + sin(aCurrentTime_num^0.4 / aDuration_num * %pi*2 - %pi/2)),[aCurrentTime_num,0,aDuration_num]);

aInitialValue_num: 1.0;

aFinalValue_num: 1.0;

aDuration_num: 4.0;

Calculate

num-solve

Idss:8e-3;

Vp:-8;

Rs:2.4e3;

Calculate

num-plot2d-sin
plot2d(aInitialValue_num + sin(aCurrentTime_num / aDuration_num * %pi/2 - %pi/2),[aCurrentTime_num,0,aDuration_num]);

aInitialValue_num: 1.0;

aFinalValue_num: 1.0;

aDuration_num: 4.0;

Calculate