Ambient pressure concept of pressure becomes irrelevant, and it is undefined at a gravitational singularity. The SI unit of pressure is the pascal (Pa), which is a very small unit relative to atmospheric pressure on Earth, so kilopascals (kPa) are more commonly used in this context. The ambient atmospheric pressure at sea level is not constant: it varies with the weather, but averages around 100 kPa. In fields such as meteorology and underwater diving, it is common to see ambient pressure expressed in bar or millibar. One bar is 100 kPa or approximately ambient pressure at sea level. Ambient pressure may in
Smart Pascal support anonymous methods, but Smart Pascal has one advantage over these native compilers. Under native Pascal (compilers that produce executable machine code), you have class procedures and ordinary procedures. The only difference between these two is that if you want to reference the first (class method) you must postfix the declaration with "of object". This way of referencing a class method is typically used for event declarations. An event is declared thus in ordinary Object Pascal: If you omit the "of object" postfix, the reference can only be used on procedures and functions on unit level. The compiler does not