====== Extended Math Functions in OpenInsight 9.3 and above (Functions/Subroutines/Programs,General) ======

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==== Created at 16 OCT 2015 01:28PM ====




Extended Math Functions in OpenInsight 9.3 and above




_addx (add)

_subx (subtract)

_mulx (multiply)

_divx (divide)

_eqx (equal, to full precision)

_nex (not equal, to full precision)

_ltx (less than, to full precision)

_gtx (greater than, to full precision)

_lex (less than or equal, to full precision)

_gex (greater than or equal, to full precision)




These functions allow you to perform math operations using full precision or a specified precision.

The _addx function adds two numbers. The required precision (number of decimal places) is an optional parameter. The syntax is as follows:




ans = _addx( num1, num2 [, decimalPlaces] )




For example:




a = "10.3456"

b = "4.567"

decimalPlaces = 2

x1 = _addx( a, b, decimalPlaces )

x2 = _addx( a, b ); * %%//%% For full precision.

%%//%% x1 will return 14.91

%%//%% x2 will return 14.9126




The _subx function subtracts two numbers. The required precision (number of decimal places) is an optional parameter. The syntax is as follows:




ans = _subx( num1, num2 [, decimalPlaces] )




For example:




a = "10.3456"

b = "4.567"

decimalPlaces = 2

x1 = _subx( a, b, decimalPlaces )

x2 = _subx( a, b ); * %%//%% For full precision.

%%//%% x1 will return 5.78

%%//%% x2 will return 5.7786




The _mulx function multiplies two numbers. The required precision (number of decimal places) is an optional parameter. The syntax is as follows:




ans = _mulx( num1, num2 [, decimalPlaces] )




For example:




a = "10.3456"

b = "4.567"

decimalPlaces = 2

x1 = _mulx( a, b, decimalPlaces )

x2 = _mulx( a, b ); * %%//%% For full precision.

%%//%% x1 will return 47.25

%%//%% x2 will return 47.2483552




The _divx function divides two numbers. The required precision (number of decimal places) is an optional parameter. The syntax is as follows:




ans = _divx( num1, num2 [, decimalPlaces] )




For example:




a = "10.3456"

b = "4"

decimalPlaces = 4

x1 = _divx( a, b, decimalPlaces )

x2 = _divx( a, b ); * %%//%% For full precision.

%%//%% x1 will return 2.6140

%%//%% x2 will return 2.6140000000000 ...

<padded to 128 decimal places>




_EQX




Equal, to full precision




For example:




a = "10.3456"

b = "10.34567"

If a _eqx b Then …




_NEX




Not equal, to full precision




For example:




a = "10.3456"

b = "10.34567"

If a _nex b Then …




_LTX




Less than, to full precision




For example:




a = "10.3456"

b = "10.34567"

If a _ltx b Then …




_GTX




Greater than, to full precision




For example:




a = "10.3456"

b = "10.34567"

If a _gtx b Then …




_LEX




Less than or equal, to full precision




For example:




a = "10.3456"

b = "10.34567"

If a _lex b Then …




_GEX




Greater than or equal, to full precision




For example:




a = "10.3456"

b = "10.34567"

If a _gex b Then …