ojs2 has produced an error Message: WARNING: fopen(/var/www/html/plugins/jurnalebook/usageStats/usageEventLogs/usage_events_20240529.log): failed to open stream: Permission denied In file: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php At line: 437 Stacktrace: File: (unknown) line (unknown) Function: PKPApplication->errorHandler(2, "fopen(/var/www/html/plugins/jurnalebook/usageStats/usageEventLogs/usage_events_20240529.log): failed to open stream: Permission denied", "/var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php", 437, Array(8)) File: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php line 437 Function: fopen("/var/www/html/plugins/jurnalebook/usageStats/usageEventLogs/usage_events_20240529.log", "ab") File: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php line 295 Function: UsageStatsPlugin->_writeUsageEventInLogFile(Array(16)) File: (unknown) line (unknown) Function: UsageStatsPlugin->logUsageEvent("UsageEventPlugin::getUsageEvent", Array(7)) File: /var/www/html/lib/pkp/classes/plugins/HookRegistry.inc.php line 89 Function: call_user_func(Array(2), "UsageEventPlugin::getUsageEvent", Array(7)) File: /var/www/html/plugins/generic/usageEvent/UsageEventPlugin.inc.php line 108 Function: HookRegistry->call("UsageEventPlugin::getUsageEvent", Array(7)) File: (unknown) line (unknown) Function: UsageEventPlugin->getUsageEvent("TemplateManager::display", Array(5)) File: /var/www/html/lib/pkp/classes/plugins/HookRegistry.inc.php line 89 Function: call_user_func(Array(2), "TemplateManager::display", Array(5)) File: /var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php line 332 Function: HookRegistry->call("TemplateManager::display", Array(5)) File: /var/www/html/pages/issue/IssueHandler.inc.php line 100 Function: PKPTemplateManager->display("issue/viewPage.tpl") File: (unknown) line (unknown) Function: IssueHandler->view(Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPRouter.inc.php line 362 Function: call_user_func(Array(2), Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPPageRouter.inc.php line 220 Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False) File: /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php line 134 Function: PKPPageRouter->route(Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php line 178 Function: Dispatcher->dispatch(Object(Request)) File: /var/www/html/index.php line 69 Function: PKPApplication->execute() Server info: OS: Linux PHP Version: 5.6.40 Apache Version: Apache/2.4.6 (CentOS) PHP/5.6.40 DB Driver: mysql DB server version: 5.5.68-MariaDB
ojs2 has produced an error Message: WARNING: flock() expects parameter 1 to be resource, boolean given In file: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php At line: 438 Stacktrace: File: (unknown) line (unknown) Function: PKPApplication->errorHandler(2, "flock() expects parameter 1 to be resource, boolean given", "/var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php", 438, Array(9)) File: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php line 438 Function: flock(False, 2) File: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php line 295 Function: UsageStatsPlugin->_writeUsageEventInLogFile(Array(16)) File: (unknown) line (unknown) Function: UsageStatsPlugin->logUsageEvent("UsageEventPlugin::getUsageEvent", Array(7)) File: /var/www/html/lib/pkp/classes/plugins/HookRegistry.inc.php line 89 Function: call_user_func(Array(2), "UsageEventPlugin::getUsageEvent", Array(7)) File: /var/www/html/plugins/generic/usageEvent/UsageEventPlugin.inc.php line 108 Function: HookRegistry->call("UsageEventPlugin::getUsageEvent", Array(7)) File: (unknown) line (unknown) Function: UsageEventPlugin->getUsageEvent("TemplateManager::display", Array(5)) File: /var/www/html/lib/pkp/classes/plugins/HookRegistry.inc.php line 89 Function: call_user_func(Array(2), "TemplateManager::display", Array(5)) File: /var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php line 332 Function: HookRegistry->call("TemplateManager::display", Array(5)) File: /var/www/html/pages/issue/IssueHandler.inc.php line 100 Function: PKPTemplateManager->display("issue/viewPage.tpl") File: (unknown) line (unknown) Function: IssueHandler->view(Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPRouter.inc.php line 362 Function: call_user_func(Array(2), Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPPageRouter.inc.php line 220 Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False) File: /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php line 134 Function: PKPPageRouter->route(Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php line 178 Function: Dispatcher->dispatch(Object(Request)) File: /var/www/html/index.php line 69 Function: PKPApplication->execute() Server info: OS: Linux PHP Version: 5.6.40 Apache Version: Apache/2.4.6 (CentOS) PHP/5.6.40 DB Driver: mysql DB server version: 5.5.68-MariaDB
ojs2 has produced an error Message: WARNING: assert(): Assertion failed In file: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php At line: 443 Stacktrace: File: (unknown) line (unknown) Function: PKPApplication->errorHandler(2, "assert(): Assertion failed", "/var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php", 443, Array(9)) File: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php line 443 Function: assert(False) File: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php line 295 Function: UsageStatsPlugin->_writeUsageEventInLogFile(Array(16)) File: (unknown) line (unknown) Function: UsageStatsPlugin->logUsageEvent("UsageEventPlugin::getUsageEvent", Array(7)) File: /var/www/html/lib/pkp/classes/plugins/HookRegistry.inc.php line 89 Function: call_user_func(Array(2), "UsageEventPlugin::getUsageEvent", Array(7)) File: /var/www/html/plugins/generic/usageEvent/UsageEventPlugin.inc.php line 108 Function: HookRegistry->call("UsageEventPlugin::getUsageEvent", Array(7)) File: (unknown) line (unknown) Function: UsageEventPlugin->getUsageEvent("TemplateManager::display", Array(5)) File: /var/www/html/lib/pkp/classes/plugins/HookRegistry.inc.php line 89 Function: call_user_func(Array(2), "TemplateManager::display", Array(5)) File: /var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php line 332 Function: HookRegistry->call("TemplateManager::display", Array(5)) File: /var/www/html/pages/issue/IssueHandler.inc.php line 100 Function: PKPTemplateManager->display("issue/viewPage.tpl") File: (unknown) line (unknown) Function: IssueHandler->view(Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPRouter.inc.php line 362 Function: call_user_func(Array(2), Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPPageRouter.inc.php line 220 Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False) File: /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php line 134 Function: PKPPageRouter->route(Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php line 178 Function: Dispatcher->dispatch(Object(Request)) File: /var/www/html/index.php line 69 Function: PKPApplication->execute() Server info: OS: Linux PHP Version: 5.6.40 Apache Version: Apache/2.4.6 (CentOS) PHP/5.6.40 DB Driver: mysql DB server version: 5.5.68-MariaDB
ojs2 has produced an error Message: WARNING: fclose() expects parameter 1 to be resource, boolean given In file: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php At line: 445 Stacktrace: File: (unknown) line (unknown) Function: PKPApplication->errorHandler(2, "fclose() expects parameter 1 to be resource, boolean given", "/var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php", 445, Array(9)) File: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php line 445 Function: fclose(False) File: /var/www/html/plugins/generic/usageStats/UsageStatsPlugin.inc.php line 295 Function: UsageStatsPlugin->_writeUsageEventInLogFile(Array(16)) File: (unknown) line (unknown) Function: UsageStatsPlugin->logUsageEvent("UsageEventPlugin::getUsageEvent", Array(7)) File: /var/www/html/lib/pkp/classes/plugins/HookRegistry.inc.php line 89 Function: call_user_func(Array(2), "UsageEventPlugin::getUsageEvent", Array(7)) File: /var/www/html/plugins/generic/usageEvent/UsageEventPlugin.inc.php line 108 Function: HookRegistry->call("UsageEventPlugin::getUsageEvent", Array(7)) File: (unknown) line (unknown) Function: UsageEventPlugin->getUsageEvent("TemplateManager::display", Array(5)) File: /var/www/html/lib/pkp/classes/plugins/HookRegistry.inc.php line 89 Function: call_user_func(Array(2), "TemplateManager::display", Array(5)) File: /var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php line 332 Function: HookRegistry->call("TemplateManager::display", Array(5)) File: /var/www/html/pages/issue/IssueHandler.inc.php line 100 Function: PKPTemplateManager->display("issue/viewPage.tpl") File: (unknown) line (unknown) Function: IssueHandler->view(Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPRouter.inc.php line 362 Function: call_user_func(Array(2), Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPPageRouter.inc.php line 220 Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False) File: /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php line 134 Function: PKPPageRouter->route(Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php line 178 Function: Dispatcher->dispatch(Object(Request)) File: /var/www/html/index.php line 69 Function: PKPApplication->execute() Server info: OS: Linux PHP Version: 5.6.40 Apache Version: Apache/2.4.6 (CentOS) PHP/5.6.40 DB Driver: mysql DB server version: 5.5.68-MariaDB
ojs2 has produced an error Message: WARNING: Cannot modify header information - headers already sent by (output started at /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php:381) In file: /var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php At line: 340 Stacktrace: File: (unknown) line (unknown) Function: PKPApplication->errorHandler(2, "Cannot modify header information - headers already sent by (output started at /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php:381)", "/var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php", 340, Array(7)) File: /var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php line 340 Function: header("Content-Type: text/html; charset=utf-8") File: /var/www/html/pages/issue/IssueHandler.inc.php line 100 Function: PKPTemplateManager->display("issue/viewPage.tpl") File: (unknown) line (unknown) Function: IssueHandler->view(Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPRouter.inc.php line 362 Function: call_user_func(Array(2), Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPPageRouter.inc.php line 220 Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False) File: /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php line 134 Function: PKPPageRouter->route(Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php line 178 Function: Dispatcher->dispatch(Object(Request)) File: /var/www/html/index.php line 69 Function: PKPApplication->execute() Server info: OS: Linux PHP Version: 5.6.40 Apache Version: Apache/2.4.6 (CentOS) PHP/5.6.40 DB Driver: mysql DB server version: 5.5.68-MariaDB
ojs2 has produced an error Message: WARNING: Cannot modify header information - headers already sent by (output started at /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php:381) In file: /var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php At line: 343 Stacktrace: File: (unknown) line (unknown) Function: PKPApplication->errorHandler(2, "Cannot modify header information - headers already sent by (output started at /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php:381)", "/var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php", 343, Array(7)) File: /var/www/html/lib/pkp/classes/template/PKPTemplateManager.inc.php line 343 Function: header("Cache-Control: no-store") File: /var/www/html/pages/issue/IssueHandler.inc.php line 100 Function: PKPTemplateManager->display("issue/viewPage.tpl") File: (unknown) line (unknown) Function: IssueHandler->view(Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPRouter.inc.php line 362 Function: call_user_func(Array(2), Array(1), Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPPageRouter.inc.php line 220 Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False) File: /var/www/html/lib/pkp/classes/core/Dispatcher.inc.php line 134 Function: PKPPageRouter->route(Object(Request)) File: /var/www/html/lib/pkp/classes/core/PKPApplication.inc.php line 178 Function: Dispatcher->dispatch(Object(Request)) File: /var/www/html/index.php line 69 Function: PKPApplication->execute() Server info: OS: Linux PHP Version: 5.6.40 Apache Version: Apache/2.4.6 (CentOS) PHP/5.6.40 DB Driver: mysql DB server version: 5.5.68-MariaDB
Vol 8, No 1 (2024) Jurnal Teori dan Aplikasi Matematika

Vol 8, No 1 (2024)

January

All articles of this issue have been reviewed in double blind review process, and the authors and co-authors are from six countries (Indonesia, Romania, Pakistan, United Arab Emirates, Malaysia, Bangladesh)

Table of Contents

Articles

Prizka Rismawati Arum, Lisa Anggraini, Indah Manfaati Nur, Eko Andy Purnomo
Views of Abstract: 123 | DOWNLOAD [PDF]: 10
1-14
Etna Vianita
Views of Abstract: 67 | DOWNLOAD [PDF]: 9
15-24
Sri Maryani, Dede Bagus Suhada, Bambang Hendriya Guswanto
Views of Abstract: 69 | DOWNLOAD [PDF]: 8
25-35
Wasim Raza, Dieky Adzikya, Saba Mehmood, Syeda Rabbia Wasti, Muhammad Jafar Hussain, Aftab Ahmad, Muhammad Talha Usman, Sajid Raza
Views of Abstract: 104 | DOWNLOAD [PDF]: 8
36-49
Fakhry Asad Agusfrianto, Sonea Andromeda, Mariam Hariri
Views of Abstract: 95 | DOWNLOAD [PDF]: 7
50-57
Pandu Aditya, Cecli Hiltrimartin
Views of Abstract: 114 | DOWNLOAD [PDF]: 9
58-71
Marlina Sinaga, Dinda Kartika
Views of Abstract: 102 | DOWNLOAD [PDF]: 11
72-83
Sarah Inayah, Al Jupri, Darhim Darhim, Sufyani Prabawanto
Views of Abstract: 145 | DOWNLOAD [PDF]: 7
84-95
Atmaja Jalu Narendra Kisma, Primandani Arsi, Pungkas Subarkah
Views of Abstract: 96 | DOWNLOAD [PDF]: 14
96-108
Ifada Novikasari, Maghfira Febriana
Views of Abstract: 85 | DOWNLOAD [PDF]: 11
109-122
Wahyuni Ekasasmita, Nur Rahmi, M. Fauzan Iskandar
Views of Abstract: 116 | DOWNLOAD [PDF]: 7
123-136
Vita Nova Anwar, Darhim Darhim, Suhendra Suhendra, Elah Nurlaelah
Views of Abstract: 86 | DOWNLOAD [PDF]: 4
137-149
Lia Budi Tristanti, Toto Nusantara, Syarifatul Maf’ulah
Views of Abstract: 81 | DOWNLOAD [PDF]: 14
150-163
Zuhadur Ra'is Ariyono Putra, Rustanto Rahardi, Sisworo Sisworo
Views of Abstract: 108 | DOWNLOAD [PDF]: 10
164-175
Edi Irawan, Rizky Rosjanuardi, Sufyani Prabawanto
Views of Abstract: 189 | DOWNLOAD [PDF]: 11
176-194
Rindu Hardianti, Solimun Solimun, Nurjannah Nurjannah, Rosita Hamdan
Views of Abstract: 69 | DOWNLOAD [PDF]: 4
195-205
Loso Judijanto, Jitu Halomoan Lumbantoruan
Views of Abstract: 118 | DOWNLOAD [PDF]: 7
206-215
Ulfah Maisaroh, Adji Achmad Rinaldo Fernandes, Atiek Iriany, Mohammad Ohid Ullah
Views of Abstract: 139 | DOWNLOAD [PDF]: 7
216-230
Tiani Wahyu Utami, Nur Chamidah, Toha Saifudin
Views of Abstract: 67 | DOWNLOAD [PDF]: 8
231-243
Siswanto Siswanto, Anggrina Gusmizain
Views of Abstract: 229 | DOWNLOAD [PDF]: 13
244-255
Dewi Setyo Utami, Nur'ainul Miftahul Huda, Nurfitri Imro'ah
Views of Abstract: 105 | DOWNLOAD [PDF]: 12
256-268
Budi Halomoan Siregar, Asmin Panjaitan, Hasratuddin Hasratuddin, Kairuddin Kairuddin, Mulyono Mulyono, Arief Aulia Rahman
Views of Abstract: 128 | DOWNLOAD [PDF]: 13
269-284
Munadi Munadi, Moh. Shaefur Rokhman, Dian Nataria Oktaviani, Ahmadi Ahmadi, Helmi Roichatul Jannah
Views of Abstract: 70 | DOWNLOAD [PDF]: 7
285-297
Sinta Oktavia Nur Fadhila, Agus Maman Abadi, Ezra Putranda Setiawan
Views of Abstract: 82 | DOWNLOAD [PDF]: 11
298-311
Nurfitri Imro'ah, Nur'ainul Miftahul Huda, Dewi Setyo Utami, Tarisa Umairah, Nani Fitria Arini
Views of Abstract: 89 | DOWNLOAD [PDF]: 6
312-323