## 1369 Reputation

18 years, 215 days

## visible...

Both:

```plots[animate](plot3d, [[r,theta,BesselJ(0,2.40483*r)*sin(2*Pi*t)],
r = 0 .. 1, theta = 0 .. 2*Pi, coords = cylindrical], t = 0 .. 1);

plots[animate](plot3d,[[r*cos(theta), r*sin(theta), BesselJ(0,2.40483*r)*
sin(2*Pi*t)], r=0..1, theta=0..2*Pi], t=0..1);
```

work fine for me in Maple 12.02.

I get:

I get:

## Difference...

A difference is that it allows a subset of LaTeX code through jsMath.

## Maple 14...

Maple 14 allows also the syntax:

```y:=cos(w*t-arctan(2*s0^3*w, -s0^2*(-s0^2+w^2))):
simplify(y) assuming positive,s0>w;
simplify(y) assuming positive,s0<w;```

## Maple 14...

Maple 14 allows also the syntax:

```y:=cos(w*t-arctan(2*s0^3*w, -s0^2*(-s0^2+w^2))):
simplify(y) assuming positive,s0>w;
simplify(y) assuming positive,s0<w;```

## limit...

It works with MultiSeries:-limit:

```MultiSeries:-limit(sin(n*Pi),n=infinity) assuming n::integer;
0
```

## expression...

Certainly, after ?Re, the argument for both Re and Im should be the same, an expression. And ?whattype includes Matrix as an expression.

## elementwise...

In Maple 13 you can use:

```m:=Matrix([[1,2],[3,4+4*I]]):
Im~(m);
[[0,0],[0,4]]
```

## LaTeX...

Similarly in LaTeX, there is a command \iota, but I have not seen \jota.

## LaTeX...

Similarly in LaTeX, there is a command \iota, but I have not seen \jota.

## symbols...

In Standard GUI you can use:

````&iota;`, `&omicron;`, `&upsilon;`, `&Iota;`, `&Omicron;`,
`&Upsilon;`, `&Chi;`;
```

ι, ο, υ, Ι, Ο, Υ, Χ

## symbols...

In Standard GUI you can use:

````&iota;`, `&omicron;`, `&upsilon;`, `&Iota;`, `&Omicron;`,
`&Upsilon;`, `&Chi;`;
```

ι, ο, υ, Ι, Ο, Υ, Χ

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