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|> eval
|> printfn "%d"</lang>
=={{header|FBSL}}==
Not only can ExecLine() calculate simple arithmetics but it can also compute and/or execute anything that FBSL proper is able to compute and/or execute using the entire range of intrinsic, user-defined and DLL-imported constants and functions of virtually any complexity. Expression AST's are built internally as part of the general parsing process.
'''One-liner maths evaluator solution:'''
<lang qbasic>#APPTYPE CONSOLE
DIM buffer AS STRING * 1024
SCANF("%s", buffer)
EXECLINE("PRINT "">>> "", " & buffer)
PAUSE</lang>
'''Output:'''
<pre>1+2*(3+(4*5+6*7*8)-9)/10+(SIN(PI)+COS(M_TWOPI))/SQRT(M_PI_2)
>>> 71.7978845608029
Press any key to continue...</pre>
=={{header|Go}}==
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