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problems with class math function pow when i do 65 ^ 331 return infinity
C#
```double xx=65;
double aa=331;

double result =Math.Pow(xx,aa);
//final result is ... infinity ```

then i used class BigInteger and return real number but the result is not same windows calculator
-------------------------------------------
windows calculator :

65 ^ 331 =1.1866456424809823888425970808655e+600
-------------------------------------------
class math return infinity and class BigIntger return number not same windows calculator result

why i use the number 65 and 331 because i programming algorithmic must be result final same windows calculator _
----------------------------------------------

C#
```double a=65;
double y=331;
double mode_;
double js=17741;
double final_ =power_get(a,y);

double mode_=final % js; //must be result is 530 ?

private static double power_get(double power, double E)
{
double base_pow = power;
double top_pow =E;
double exploit_js = base_pow;//2
double i;
for (i = 0; i < top_pow - 1; i++)
{
exploit_js *= base_pow;

}
return exploit_js;
}```

i need way to get a final result for this calculate is= 530;
i know double is limited storage but what ? the variable
type can be solve this and get the result final is =530?
Posted
austinbox 7-Dec-13 0:06am
Well, the data type long does hold bits of a range from -9223372036854775808 to 9223372036854775807
And if you know the number is positive which would work in this case you could increase the range of positive numbers using ulong.

## Solution 1

What you observe are the correct valid results. Perhaps all your problem is to get familiar with floating-point numbers, as an approximate computer representation of such concept and mathematical abstraction as real numbers:
http://en.wikipedia.org/wiki/Floating-point_number[^],
http://en.wikipedia.org/wiki/Real_number[^].

Just to note: the theory of real numbers, being a base of calculus, is an extremely deep and complex field of mathematics.

—SA

v2

## Solution 2

You are aware your code will not compile as is ?

Consider that it might be difficult/impossible to match exactly in C# the internal algorithms and data-structures used by Windows Calc ... unless MS published them.

You could, using the WinAPI Platform Invoke facilities use 'SetParent, and 'MoveWindow, to kind-of "embed" the Win Calculator in your .NET C# app, but I suspect that would be unsatisfactory, and inter-operation with it ... as in reading the contents of the display text-edit window ... is ... tricky.

MS has an example of using 'SendKeys in C# to control the Win Calculator: [^].

The .NET NameSpace System.Windows.Automation is a better way to attempt to inter-operate; see: [^].