Two iterative methods are considered, Richardson's method and a general second order method. For both methods, a variant of the method is _ derived for which only even numbered iterates are computed. The variant is called a leapfrog method. Comparisons between the conventional form of the methods and the leapfrog form are made under the assumption that the number of unknowns is large. In the ca...

Two experimental quantum computers tackle the most complex problems yet, suggesting an end to debate on whether “primacy”—the point at which a computer outperforms best possible classical computer—can be reached.

Finger movements closely related to cognitive training have been found effective on preventing dementia. Dementia in aged people has been rapidly growing nowadays, which has to come with increase of medical cost to treat it. In this paper, we propose dementia-prevention techniques that can be useful in a serious game using a leap motion controller. To this end, we associate finger motions with ...

Kinect and Leap Motion sensors are commonly used for tracking applications today. However, both sensors have failure modes in particular tracking scenarios. The Kinect sensor is very sensitive to the orientation of the user with respect to the sensor and is susceptible to occlusions. The Leap Motion senor has a limited range and field of view, but is far more accurate than the Kinect. In this p...

the present study was conducted to investigate the impacts of retrofitted cng vehicles on airpollutant emissions in tehran over a 20 years period using available statistical data, precise automobile tests, data analysis, and leap software. the obtained results revealed an increase in air pollutant emissionsincluding co (equal to 1030.77 thousand tons), nox (equal to 1030.77 thousand tons), thc ...