Add abakus

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/abakus@1071969 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 359 insertions, 0 deletions

diff --git a/src/hmath.h b/src/hmath.h
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+++ b/src/hmath.h
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+/* HMath: C++ high precision math routines
+   Copyright (C) 2004 Ariya Hidayat <[email protected]>   
+
+   This file was copied from the SpeedCrunch program.  Please visit
+   http://speedcrunch.berlios.de/ for more information.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 2
+   of the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program. If not, write to:
+      The Free Software Foundation, Inc.
+      59 Temple Place, Suite 330
+      Boston, MA 02110-1301 USA.
+   
+ */
+
+#ifndef HMATH_H
+#define HMATH_H
+
+#include <iostream>
+
+class HMath;
+
+class HNumber
+{
+friend class HMath;
+
+public:
+
+  /*!
+   * Creates a new number.
+   */
+  HNumber();
+  
+  /*!
+   * Destroys this number.
+   */
+  ~HNumber();
+  
+  /*!
+   * Copies from another number.
+   */
+  HNumber( const HNumber& );
+  
+  /*!
+   * Assigns from another number.
+   */
+  HNumber& operator=( const HNumber& );
+
+  /*!
+   * Creates a new number from an integer value.
+   */
+  HNumber( int i );
+  
+  /*!
+   * Creates a new number from a string.
+   */
+  HNumber( const char* );
+  
+  /*!
+   * Returns true if this number is Not a Number (NaN).
+   */
+  bool isNan() const;
+  
+  /*!
+   * Returns true if this number is zero.
+   */
+  bool isZero() const;
+  
+  /*!
+   * Returns true if this number is more than zero.
+   */
+  bool isPositive() const;
+  
+  /*!
+   * Returns true if this number is less than zero.
+   */
+  bool isNegative() const;
+
+  /*!
+   * Adds another number.
+   */
+  HNumber operator+( const HNumber& ) const;
+  
+  /*!
+   * Adds another number.
+   */
+  HNumber& operator+=( const HNumber& );
+
+  /*!
+   * Subtract from another number.
+   */
+  HNumber operator-( const HNumber& ) const;
+
+  /*!
+   * Subtract from another number.
+   */
+  HNumber& operator-=( const HNumber& );
+
+  /*!
+   * Multiplies with another number.
+   */
+  HNumber operator*( const HNumber& ) const;
+
+  /*!
+   * Multiplies with another number.
+   */
+  HNumber& operator*=( const HNumber& );
+
+  /*!
+   * Divides with another number.
+   */
+  HNumber operator/( const HNumber& ) const;
+
+  /*!
+   * Divides with another number.
+   */
+  HNumber& operator/=( const HNumber& );
+ 
+  /*!
+   * Returns true if this number is greater than n.
+   */
+  bool operator>( const HNumber& n ) const;
+
+  /*!
+   * Returns true if this number is less than n.
+   */
+  bool operator<( const HNumber& n ) const;
+
+  /*!
+   * Returns true if this number is greater than or equal to n.
+   */
+  bool operator>=( const HNumber& n ) const;
+  
+  /*!
+   * Returns true if this number is less than or equal to n.
+   */
+  bool operator<=( const HNumber& n ) const;
+
+  /*!
+   * Returns true if this number is equal to n.
+   */
+  bool operator==( const HNumber& n ) const;
+
+  /*!
+   * Returns true if this number is not equal to n.
+   */
+  bool operator!=( const HNumber& n ) const;
+  
+  /*!
+   * Returns a NaN (Not a Number).
+   */
+  static HNumber nan();
+
+private:
+  class Private;
+  Private* d;  
+};
+
+class QString;
+
+class HMath
+{
+public:
+
+  /*!
+   * Formats the given number as string, using specified decimal digits.
+   * Note that the returned string must be freed.
+   */
+  static char* format( const HNumber&n, char format = 'g', int prec = -1 );  
+
+  /*!
+   * Formats the given number as string, using specified decimal digits.
+   * Note that the returned string must be freed.
+   */
+  static char* formatFixed( const HNumber&n, int prec = -1 );  
+
+  /*!
+   * Formats the given number as string, in exponential format.
+   * Note that the returned string must be freed.
+   */
+  static char* formatExp( const HNumber&n, int prec = -1 );  
+
+  /*!
+   * Formats the given number as string, using specified decimal digits.
+   * Note that the returned string must be freed.
+   */
+  static char* formatGeneral( const HNumber&n, int prec = -1 );  
+
+  static QString formatGenString( const HNumber &n, int prec = -1 );
+
+  /*!
+   * Returns the constant pi.
+   */
+  static HNumber pi();
+  
+  /*!
+   * Adds two numbers.
+   */
+  static HNumber add( const HNumber& n1, const HNumber& n2 );
+  
+  /*!
+   * Subtracts two numbers.
+   */
+  static HNumber sub( const HNumber& n1, const HNumber& n2 );
+  
+  /*!
+   * Multiplies two numbers.
+   */
+  static HNumber mul( const HNumber& n1, const HNumber& n2 );
+  
+  /*!
+   * Divides two numbers.
+   */
+  static HNumber div( const HNumber& n1, const HNumber& n2 );
+  
+  /*!
+   * Returns -1, 0, 1 if n1 is less than, equal to, or more than n2.
+   */
+  static int compare( const HNumber& n1, const HNumber& n2 );
+  
+  /*!
+   * Returns the absolute value of n.
+   */
+  static HNumber abs( const HNumber& n );
+  
+  /*!
+   * Returns the negative of n.
+   */
+  static HNumber negate( const HNumber& n );
+  
+  /*!
+   * Returns the integer part of n.
+   */
+  static HNumber integer( const HNumber& n );
+  
+  /*!
+   * Returns the fraction part of n.
+   */
+  static HNumber frac( const HNumber& n );
+  
+  /*!
+   * Rounds n to the specified decimal digits.
+   */
+  static HNumber round( const HNumber&n, int prec = 0 );
+    
+  /*!
+   * Returns the square root of n. If n is negative, returns NaN.
+   */
+  static HNumber sqrt( const HNumber& n );
+  
+  /*!
+   * Raises n1 to an integer n.
+   */
+  static HNumber raise( const HNumber& n1, int n );
+
+  /*!
+   * Raises n1 to n2.
+   */
+  static HNumber raise( const HNumber& n1, const HNumber& n2 );
+
+  /*!
+   * Returns e raised to x.
+   */
+  static HNumber exp( const HNumber& x );
+  
+  /*!
+   * Returns the natural logarithm of x.
+   * If x is non positive, returns NaN.
+   */
+  static HNumber ln( const HNumber& x );
+  
+  /*!
+   * Returns the base-10 logarithm of x.
+   * If x is non positive, returns NaN.
+   */
+  static HNumber log( const HNumber& x );
+  
+  /*!
+   * Returns the sine of x. Note that x must be in radians.
+   */
+  static HNumber sin( const HNumber& x );
+
+  /*!
+   * Returns the cosine of x. Note that x must be in radians.
+   */
+  static HNumber cos( const HNumber& x );
+
+  /*!
+   * Returns the tangent of x. Note that x must be in radians.
+   */
+  static HNumber tan( const HNumber& x );
+
+  /*!
+   * Returns the arc sine of x.
+   */
+  static HNumber asin( const HNumber& x );
+  
+  /*!
+   * Returns the arc cosine of x.
+   */
+  static HNumber acos( const HNumber& x );
+  
+  /*!
+   * Returns the arc tangent of x.
+   */
+  static HNumber atan( const HNumber& x );
+  
+  /*!
+   * Returns the hyperbolic sine of x. Note that x must be in radians.
+   */
+  static HNumber sinh( const HNumber& x );
+
+  /*!
+   * Returns the arc hyperbolic sine of x.  The result is in radians.
+   */
+  static HNumber asinh( const HNumber & x );
+
+  /*!
+   * Returns the hyperbolic cosine of x. Note that x must be in radians.
+   */
+  static HNumber cosh( const HNumber& x );
+
+  /*!
+   * Returns the arc hyperbolic cosine of x.  The result is in radians.
+   */
+  static HNumber acosh( const HNumber & x );
+
+  /*!
+   * Returns the hyperbolic tangent of x. Note that x must be in radians.
+   */
+  static HNumber tanh( const HNumber& x );
+
+  /*!
+   * Returns the arc hyperbolic tangent of x.  The result is in radians.
+   */
+  static HNumber atanh( const HNumber & x );
+
+  /*!
+   * Releases all resources. After calling this function, you can not use
+   * any other functions as well as class HNumber. 
+   */
+  static void finalize();
+  
+};
+
+std::ostream& operator<<( std::ostream& s, HNumber );
+
+#endif // HMATH_H
+
+// vim: set et sw=2 ts=8: