## 1072 Reputation

12 years, 71 days

## 'assume = nonnegative'...

@MathPrincess123 Is this what you want?

```q := p^2;
nsr1 := simplify(NSR, 'assume = nonnegative');

nsr:=Quotient(nsr1,deltaa,p,'r')
r;
```

@MathPrincess123  Use the green arrow button to upload the worksheet

@Christian Wolinski ok I realised what you mean. That situation is not likely to occour for me. thank you.

## Can you explain?...

In the first post I had set a,b,c,d.  See attached. If this fatally flawed? I dont quite understand your answer.

## Figured it out...

I worked it out

```a, b, c, d := 1, -1, 1, -1;
if (a, b, c, d) = (1, 0, 1, -1) then
print("foo");
elif (a, b, c, d) = (1, 1, 1, -1) then
print("bar");
elif (a, b, c, d) = (1, -1, 1, -1) then
print("foo-bar");
elif (a, b, c, d) = (0, -1, 1, -1) then
print("no-foo-bar");
end if;
```

## An improvement to handle 1/(h+1) in coef...

@tomleslie I ran into a situation where the procedure didn't work. I got to work.

`a[h]/(h + 1) as a coefficient caused a failure`
```getCP1 := proc(t, var := x)
local cf, varpwr;
if not has(t, var) then
return <0, t>;
elif op(-1, t) = var then
return <1, `*`(op([1 .. -2], t))>;
else varpwr, cf := selectremove(has, [op(t)], var);
return <op(-1, op(varpwr)), `*`(op(cf))>;
end if;
end proc;

```

@dharr @tomleslie   Dharr. That is clever. Totally missed it myself.  Tomsile yes that is what I am looking for.

## Thank you...

@vv @acer The docoument contained a various mixture of things I had tried.  continuous I see why now plotting from alpha=-1..1, m=2,n=3 there is a cusp.

## Not surprised it does not give an answer...

The square root of 3 can be positive or negative. So how should sign know which one should be referenced?

## Maple could make it easier...

@acer Thank you. Maple could make the hyper insertion box select a bit more general. Shall study those links tonight.

## Opened with Geogebra...

@dharr  Oh mine ".ggb" opened with Geogebra fine. Also tested a PDF which opened with Adobe too. Thanks for the explination.

## Success:-question differences between / ...

@dharr Thank you. This works fine for me.  file://localhost\C:\Users\Ronan\Documents\GeoGebra\UHG 4.ggb

but file:\\localhost\C:;\Users\.......   forces to  http://file:\\localhost\C:\Users\Ronan\Documents\GeoGebra\UHG 4.ggb which does not work.

I notice you used all forward slashes "/ " which also work.

Is there a particular rule on the use of  \ and / in directory and file naming. I know I have had problems  on this before with Maple and library's

## Open file in Geogebra...

@acer Ideally I would like the link to open the file in geogebra,  or for the sake of the principle, open a MS Office file with Word, Excel, etc.

## Hind sight 20:20 vision...

@Carl Love Yes, I do understand. I appreciate you help. I was wandering around trying different things.Easy miss the typos doing that.  That is what I was trying to communicate.