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This study aims to test the effectiveness of using Maple software in mathematics learning, especially in improving students' mathematical understanding of the concept of integral calculus. This research is based on students' learning difficulties in understanding the concept of integral calculus, area, and volume of rotating objects. The learning used in mathematics is assisted by Maple software with simulation methods. The population in this study were 11th grade students from a vocational high school in Kuningan district, West Java, with a sample of 2 classes, sampling using purposive sampling technique where one class acts as a control and the other class as the experimental class. The experimental class was taught using a computer-assisted learning model with maple software, while the control class was taught using classical learning. The data in this study were collected through tests of understanding skills, observation, questionnaires, and interviews. Data related to student's understanding concept abilities were collected through tests (pretest and posttest) based on the Holistic Assessment Rubric presented. Observations were made to see student and teacher activities during the learning process taking place in the experimental class which was observed through the guidelines on the observation sheet. Data related to student attitudes in learning the Maple software-assisted model were collected through a questionnaire on the scale of students' attitudes with a Likert scale model. While the interview aims to find out the subject's answers to problems in oral learning. The design of this research is Quasi-Experimental with a Non-Equivalent Control Group Design. The data analysis technique used the normality and homogeneity test as a prerequisite test, because the two data were normally distributed and homogeneous, followed by a comparative t-test. Based on the results of statistical analysis, it was obtained t_count (4.962)> t_table (2.39), so that H1 was accepted, meaning that there was a significant difference in the average mathematical understanding ability between students who used Maple software and those who did not. The conclusion that can be drawn is that learning mathematics research with maple software can improve students' mathematical understanding of the concept of integral calculus, besides learning mathematics with the help of maple software gets a positive response from students. [ABSTRACT FROM AUTHOR]