simple selection

• Syntax

merge (expr_1 , expr_2 , condition)

ex:

write (unit=*,fmt=*) merge(“I love you”,”I hate you”,My_luv_4_u)

Quotient=A/merge(B,1,B/=0.0)

Squar=sqrt(merge(A,-A,A>=0.)

Squar=merge(sqrt(A),sqrt(-A),A>=0.)

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