## 5790 Reputation

15 years, 311 days

## isolate command...

Maple

Using a command in succession can coax maple into different outputs.

eq:=(a*x+b)/(c*x+d)=1

Getting rid of the denominator is probably the most deciding factor in how maple displays an output.

isolate(eq,b)

isolate(%,x,1)

Using the isolate command, you couldn't arrive at that output without using it twice.

## Lowercase script L not available in Mapl...

Maple Flow

In MapleFlow lowerscript L is not easily available.  It should be accessible with the CRTL+space after typing L.

Or in a list of common symbols (that pallete is not available in Maple Flow)

I had to to use maple to discover how to enter it.

`&ell; produced the correct result and then deleting the quote I could achieve the desired result.

## Proportional symbol ...

Maple , Maple Flow

I got the proportional symbol to work once, typing "proportional" + CRTL + Space.  Went for wlak came back and could not get it to work at all.

Does it actually work or am I imagining things?

## Flatten image from curved surface...

Maple

I have this image on a vase and I want to flatten it using Maple to see how it would look on a flat piece of paper.  How can we go about it.

The image is attached.

Image1-Greek.zip

## Probability Christmas names in a hat ......

So, every year our family picks names for Christmas, but this year seemed odd.  My wife pointed out that one family always just happens to randomly pick another families name.  That is the majority of the time most of one family is always trading with another, the only rule is that each family member can not trade with a member of their own family.

I was wondering if someone could come up with a way to calculate just how random the choice actually was from the previous year or years using whatever means necessary .. graph theory came to mind.  The draw was done behind closed doors, so my wife questioned how failrly that was done, and so brought me here with the question ...
Was the name choosing really random or was it actually a fixed draw?

In our group there are total of 9 adults and 9 children, but actually the 2 youngest children swap gifts so it's really 9 adults and 7 children who can swap presents.  But I will breakdown the families less the two trading children.

Family A - 2 adults 1 child
Family B - 2 adults 2 children
Family C - 2 adults 2 children
Family D - 2 adults 2 children