Template:Related/Pfunc expr

• Pfunc expr stack exhausted ("Expression error: Stack exhausted.")
• Pfunc expr unexpected number ("Expression error: Unexpected number.")
• Pfunc expr preg match failure ("Expression error: Unexpected preg_match failure.")
• Pfunc expr unrecognised word ("Expression error: Unrecognized word "$1".")
• Pfunc expr unexpected operator ("Expression error: Unexpected $1 operator.")
• Pfunc expr missing operand ("Expression error: Missing operand for $1.")
• Pfunc expr unexpected closing bracket ("Expression error: Unexpected closing bracket.")
• Pfunc expr unrecognised punctuation ("Expression error: Unrecognized punctuation character "$1".")
• Pfunc expr unclosed bracket ("Expression error: Unclosed bracket.")
• Pfunc expr division by zero ("Division by zero.")
• Pfunc expr invalid argument ("Invalid argument for $1: less than -1 or greater than 1.")
• Pfunc expr invalid argument ln ("Invalid argument for ln: less than or equal to 0.")
• Pfunc expr unknown error ("Expression error: Unknown error ($1).")
• Pfunc expr not a number ("In $1: Result is not a number.")