====== SQR ======
Returns the square root of a number

**Implemented by:** [[:basics:Dartmouth:dartmouth2]], [[:basics:Dartmouth:dartmouth4]], [[:basics:ANSI:ansimin]], [[:basics:hptsb:]], [[:basics:decbasic:]], [[:basics:Altair:]], [[:basics:Applesoft:]], [[:basics:TI994:]], [[:basics:CBM:]], [[:basics:Atari:]], [[:basics:msatari:]], [[:basics:trs80:level2]], [[:basics:trscolor:colormc]], [[:basics:trscolor:colorext]], [[:basics:Sinclair:zx81]], [[:basics:Sinclair:spectrum]], [[:basics:BBC:]], [[:basics:GWBASIC:]], [[:basics:MSX:]], [[:basics:bwbasic:]], [[:basics:bwbasic:bw32]], [[:basics:ABasiC:]], [[:basics:msqb:QBasic]], [[:basics:VBDOS:]], [[:basics:FreeBASIC:]], [[:basics:Gambas:]], [[:basics:ugBASIC:]], [[:basics:minibasicjs:]], [[:basics:EndBASIC:]]

**With variations:** 

**Also written as: ** /* Alternative spellings and abbreviations this keyword has. No need to refer to a BASIC, there is a section for that later. */

===== Usage =====



==== Variations ====



===== Examples =====

/* This is a code block, using GeSHi syntax highlighting for //gwbasic//. Other styles of interest might be //basic4gl//, //blitzbasic//, //freebasic//, //gambas//, //locobasic//, //purebasic//, //qbasic//, //sdlbasic//, //thinbasic//, //vb//, //vbnet//, //xbasic// or //zxbasic//. */

<code gwbasic>
10 PRINT SQR(9)
</code>

===== Comments =====
This is one of the original functions implemented by [[:basics:dartmouth|Dartmouth BASIC]], of the ones named with a three-letter abbreviation which allowed their name to be stored in a single 20-bit machine word of the GE-235 computer.((https://en.wikipedia.org/wiki/Dartmouth_BASIC#First_Edition)).

===== Related keywords =====
/* Keywords that are often or always used along this one */

===== Similar keywords =====
/* Keywords with the same or similar functionality found in other versions of BASIC */

===== In other languages... =====
/* For parallels and comparisons with other modern-day languages */

===== References =====
/* If you used the ((citation)) syntax elsewhere in the text, they will appear under this section. But you can write some recommendations of books, magazines, etc */

{{tag>Functions}}