Calculator fast, capable of performing calculations with infinite numbers of integer digits and an accuracy of up to 65,535 decimal digits. Performs the main mathematical functions and the calculation of the square root. Module has to interact with other programs. It can be used to perform calculations from other programs. It has a friendly and intuitive interface.

Its capacity and speed of execution make this an excellent tool for lengthy calculations. For example:

888,888,888,888,888,888,888,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,999,888,888,888,888,888,888,888,888,888,888,888,888,888,888,888,888,888,888,888,888,888,889,933,333,212,222,222,233,333,333,333,334,444,444,444,444,422,290,009,112,829,929,293,888.0
× (Multiplied)
3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273
= (Equal) 2,792,526,803,190,927,323,078,254,295,432,179,207,423,979,759,820,458,452,298,194,878,651,322,928,456,389,482,329,221,847,322,751,123,274,725,913,783,044,822,316,150,866,571,326,999,507,574,631,518,985,622,065,283,199,648,768,786,262,343,263,870,976,239,514,892,093,717,718,412.397523922305038376840436289592657621819219133175964501043132506880820261718185001040875225001045899522746327712837449302916535764800601361900311593143937400417869063373325946238447603843943099845008098949680198780408986598537460533498204198753910912492477246347786326955339968783057039643659247439424

It has all the basic operations: addition, subtraction, multiplication and division. Besides additional operations: square root, integer division and obtaining the remainder of integer division. All performed with a reasonable speed performance even on machines obsolete.