Functions
| qreal | qAcos ( qreal v ) |
| qreal | qAsin ( qreal v ) |
| qreal | qAtan2 ( qreal x, qreal y ) |
| qreal | qAtan ( qreal v ) |
| int | qCeil ( qreal v ) |
| qreal | qCos ( qreal v ) |
| qreal | qExp ( qreal v ) |
| int | qFloor ( qreal v ) |
| qreal | qLn ( qreal v ) |
| qreal | qPow ( qreal x, qreal y ) |
| qreal | qSin ( qreal v ) |
| qreal | qSqrt ( qreal v ) |
| qreal | qTan ( qreal v ) |
Function Documentation
Returns the arccosine of v as an angle in radians. Arccosine is the inverse operation of cosine.
See also qAtan(), qAsin(), and qCos().
Returns the arcsine of v as an angle in radians. Arcsine is the inverse operation of sine.
See also qSin(), qAtan(), and qAcos().
Returns the arctangent of a point specified by the coordinates x and y. This function will return the angle and its direction.
See also qAtan().
Returns the arctangent of v as an angle in radians. Arctangent is the inverse operation of tangent.
See also qTan(), qAcos(), and qAsin().
int qCeil ( qreal v )
Return the ceiling of the value v.
The ceiling is the smallest integer that is not less than v. For example, if v is 41.2, then the ceiling is 42.
See also qFloor().
Returns the cosine of an angle v in radians.
See also qSin() and qTan().
Returns the exponential function of e to the power of v.
See also qLn().
int qFloor ( qreal v )
Return the floor of the value v.
The floor is the largest integer that is not greater than v. For example, if v is 41.2, then the floor is 41.
See also qCeil().
Returns the natural logarithm of v. Natural logarithm uses base e.
See also qExp().
Returns the value of x raised to the power of y. That is, x is the base and y is the exponent.
See also qSqrt().
Returns the sine of the angle v in radians.
See also qCos() and qTan().
Returns the square root of v. This function returns a NaN if v is a negative number.
See also qPow().
Returns the tangent of an angle v in radians.
See also qSin() and qCos().
