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All Journal BAREKENG: Jurnal Ilmu Matematika dan Terapan Journal of Science and Technology Mathematics and Applications (MAp) Journal Engagement: Jurnal Pengabdian Kepada Masyarakat
Musthofa, Syarto
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Religion Arts Humanities Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Journal : Journal of Science and Technology

 1 
Penerapan Metode Regresi Linear Sederhana Untuk Prediksi Harga Beras di Kota Padang Hasibuan, Lilis Harianti; Musthofa, Syarto
JOSTECH: Journal of Science and Technology Vol 2, No 1: Maret 2022
Publisher : UIN Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/jostech.v2i1.3802

Abstract

The purpose of this research is to get predictions of rice prices. Linear regression is used  as a method of predicting rice prices in the next X(t) period. In this study, the actual rice price Y(t) is the effect variable and the time period is the causal variable. The linear regression equation obtained is Y'=13562.561+9.041958X. Testing the accuracy of the prediction results was carried out using RMSE with a value of 0.126. The prediction of rice prices using the linear regression method can be said to be in the very good category, it can be seen that the RMSE value is very small in the test and meets the standard.
Barisan Cauchy pada Ruang Semimetrik Terbatas Rianjaya, Ilham Dangu; Putri, Amelia; Musthofa, Syarto
JOSTECH Journal of Science and Technology Vol 4, No 1: Maret 2024
Publisher : UIN Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/jostech.v4i1.8234

Abstract

Semimetric spaces with bounded property means that it is bounded below and bounded above by constant multiples of a metric space. Moreover, in semimetric spaces, every convergent sequence is not necessarily to be a Cauchy sequence. This study aims to examine the property of sequences of semimetric spaces with boundary property. In this work, analytical method of proof is used. The results obtained are the equivalence of the convergence of the sequence, and the fulfillment of the Cauchy criterion in the finite semimetric space and the metric space that bounds it. In addition, the completeness property in one space also causes the other space to fulfill the completeness property.
Co-Authors Asfa'ani, Ezhari Azmi, Zain Darvi Mailisa Putri Fauzi Ahmad Muda Hasibuan, Lilis Harianti Khoiro, Ismi Miftahul Jannah Putri, Amelia Rianjaya, Ilham Dangu Syafi’i, Mohamad Wandira, Raju Zikri, Muhamad