02747nas|a2200385 i 4500 20260818171543.0 121095s1981 th uu m rtt 00| a1eng d .b10495071 AIT SSPR no. CA-81-2 Kao, Chung-cheng Performance evaluation of some ordinary differential equations solvers Bangkok : Asian Institute of Technology, 1981 81 p. Special studies project report ; no. CA-81-2 A special study submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Special Studies Project Report (M. Eng.) - Asian Institute of Technology, 1981 This study surveys the available software for solving non-stiff and stiff ordinary differential equations (ODEs). A survey of performance evaluation studies was made, and a performance of several ODE solvers was compared by using test package NEW DETEST. The results indicated that a variable order formula based on Adams methods could be best for non-stiff ODE if the function evaluations are very expensive. Otherwise, a code based on Runge-Kutta- Fehlberg orders of 7 and 8 is probably the best choice. On the other hand, it is difficult to choose between the two stiff ODE solvers (DSTIFF and LSODE) we have evaluated. Both solvers are quite efficient for solving most stiff ODEs. Attempts were made to improve the performance of the two stiff ODE solvers we have studied. Several simple changes were made to the codes and the performance of the changed codes was evaluated. We have found that overall performance of the codes can be improved by some simple changes we suggest. Differential equations Gupta, Gopal K., Chairperson Hosking, Roger J., Examination Committee Malik, Ghulam M., Examination Committee The Government of the Republic of China, Scholarship Donor Asian Institute of Technology. Special studies project report ; no. CA-81-2 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B21462 .b10495071 mnait y 241211 2 951012 m a y 0 mnait mnarc 22 40 Barcode : 30050120567374 CREATED : 2013-05-07 RECORD # : i12733945 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120344261 CREATED : 2016-06-15 RECORD # : i13038874 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 86671 86671 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT SSPR no. CA-81-2 30050120567374 2026-08-18 17:15:43 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT SSPR no. CA-81-2 30050120344261 2026-08-18 17:15:43 2026-08-18 40