7 years, 93 days

## Histogram of normally distributed random...

Maple

I am looking to develop a histogram from a random data set that contains integers that are approximately normally distributed.  The intent is to develop a histogram from the dataset that looks like a fairly decent-approximation of a normalized curve (but not necessarily perfect)....  the next stage to this is a second histogram that shows a bimodal distribution (but not necessarily perfect)

To this point I have...

restart;

with(Statistics);

randomize();

N := RandomVariable(Normal(300, 10));

A := [seq(MapleTA:-Builtin:-decimal(0, Sample(N, 500)[i]), i = 1 .. 500)];

Histogram(A, frequencyscale = absolute, bincount = 25, binwidth = 1, tickmarks = [default, default]);

I am certain you will find what I have thus far is far from ideal, as such any help is appreciated.

Thanks,

Mark

## Maple: Squaring both sides of an equati...

Maple

Hello,

Can someone explain to me why the following lists do not have the same content?  And suggest how I might be able to fix the problem?

restart;

a := (x^2+y^2)^3 = y^2:

b := (x^2+y^2)^(3/2) = y:

listA := sort([seq(evalf(solve({y >= 0, subs(x = i, a)}, {y})), i = 0.5e-1 .. .5, 0.5e-1)]);

listB := sort([seq(evalf(solve({y >= 0, subs(x = i, b)}, {y})), i = 0.5e-1 .. .5, 0.5e-1)]);

evalb(listA = listB);

## MathML and Latex producing undesired res...

Maple

Hi all,

I am attempting to have the piecewise function

Render using either mathML or Letex in maple, using the syntax:

f := piecewise(-Pi <= x and x < 0, 1, 0 <= x and x < Pi, 0);

la := latex(f);

mml := MathML[ExportPresentation](f);

Unfortunately, as you will notice the latex produces some really annoying "and" words amongst the code.  While the MathML produces some equally annoying "&wedge;", and symbols, amongst the code.

Any help would be appreciated.

Mark

## Display of trig functions...

Maple

Hello,

I am trying to get Maple to display sin2(x)  rather than (sin(x))2.  In particular I am trying to have it output the latex for the prior using latex(sin^2(x) , output=string), or similar.

Any ideas would be greatly appreciated.

Thanks,

Mark

## Matrix Maple Call...

Maple

Hello all,

I am looking for a maple command to do the following

#outline of idea, is a user would pre-define a number of rows and a single Matrix command would automatically generate a Matrix based on the data the user provides.

numRows:= ;#user would enter a number here

row1:=[1,2,3];  #user enters data for each row

row2:=[4,5,6,7];

row4:=['red','blue',7];

#user will enter a few more rows to match numRows, specified above

Matrix([[row1],[row2],[row3],....,[rown]]);#this matrix command would be generated based on the above entered data

I was thinking some form of counter could do this?  Any suggestions would be appreciated.

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