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*** arg**- Multiply the receiver and arg and answer another Number
**+ arg**- Sum the receiver and arg and answer another Number
**- arg**- Subtract arg from the receiver and answer another Number
**/ arg**- Divide the receiver by arg and answer another FloatE
**< arg**- Answer whether the receiver is less than arg
**<= arg**- Answer whether the receiver is less than or equal to arg
**= arg**- Answer whether the receiver is equal to arg
**> arg**- Answer whether the receiver is greater than arg
**>= arg**- Answer whether the receiver is greater than or equal to arg
**asFloatD**- Answer the receiver converted to a FloatD
**asFloatQ**- Answer the receiver converted to a FloatQ
**exponent**- Answer the exponent of the receiver in mantissa*2^exponent representation ( |mantissa|<=1 )
**fractionPart**- Answer the fractional part of the receiver
**timesTwoPower: arg**- Answer the receiver multiplied by 2^arg
**truncated**- Truncate the receiver towards zero and answer the result
**~= arg**- Answer whether the receiver is not equal to arg