# Maths

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I am an utter dumb as when it comes to mathematics and need the formula equation to resize video.

Say the video is 1046 width and 562 height ans I want to make it smaller, for example I want to make its width 640 or anything else, then how do I keep the relative height?

If anyone has the time and inclination to show me, here is a func template.

```\$W = 1046
\$H = 562

ConsoleWrite("Width = " & \$W & @CRLF)
ConsoleWrite("Height = " & \$H & @CRLF)

_NewSize(\$W, \$H)

ConsoleWrite("New Width = " & \$W & @CRLF)
ConsoleWrite("New Height = " & \$H & @CRLF)

Func _NewSize(ByRef \$X, ByRef \$Y)
\$newwidth = 640
;Some fancy equation
;\$X =
;\$Y =
EndFunc```

Monkey's are, like, natures humans.

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JohnOne,

My suggestion:

```\$W = 1046
\$H = 562

ConsoleWrite("Width = " & \$W & @CRLF)
ConsoleWrite("Height = " & \$H & @CRLF)
ConsoleWrite("Ratio: " & Round(\$W/\$H, 2) & @CRLF)

\$newwidth = 640
_NewSize(\$W, \$H, \$newwidth)

ConsoleWrite("New Width = " & \$W & @CRLF)
ConsoleWrite("New Height = " & \$H & @CRLF)
ConsoleWrite("Ratio: " & Round(\$W/\$H, 2) & @CRLF)

Func _NewSize(ByRef \$Width, ByRef \$Height, \$NewWidth)
\$Height = Int(\$NewWidth / \$Width * \$Height)
\$Width = \$NewWidth
EndFunc```
M23

Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind

Open spoiler to see my UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

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Cheers M23.

Monkey's are, like, natures humans.

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my way.

```\$W = 1046
\$H = 562

ConsoleWrite("Width = " & \$W & @CRLF)
ConsoleWrite("Height = " & \$H & @CRLF)

_NewSize(\$W, \$H)

ConsoleWrite("New Width = " & \$W & @CRLF)
ConsoleWrite("New Height = " & \$H & @CRLF)

Func _NewSize(ByRef \$X, ByRef \$Y)
\$newwidth = 640
\$Y= int(\$Y-( \$Y*((100-(\$newwidth/\$X)*100))/100))
\$X=\$newwidth
EndFunc```

Saludos

AutoIt...

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Where does the value 100 come from?

Monkey's are, like, natures humans.

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is the reference to 100%

Saludos

AutoIt...

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I see, thanks.

Monkey's are, like, natures humans.

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or...

```\$W = 1046
\$H = 562
\$newwidth = 640
ConsoleWrite("Width = " & \$W & @CRLF)
ConsoleWrite("Height = " & \$H & @CRLF)

_NewSize(\$W, \$H)

ConsoleWrite("New Width = " & \$newwidth & @CRLF)
ConsoleWrite("New Height = " & \$H & @CRLF)

Func _NewSize(ByRef \$X, ByRef \$Y)
\$H = Int(\$H / \$W * \$newwidth)
EndFunc```

..though almost the same as Melba's

Some guy's script + some other guy's script = my script!

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Ahem, what are \$X and \$Y for? You're using implicit globals.

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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Actually meant to put the global stuff in a function but forgot.

Meh, no harm done.

Monkey's are, like, natures humans.

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