This book covers mathematical topics relevant to undergraduate studies at maritime higher education institutions. Lessons presented in a conceptual and often visual way are enriched with numerous applications, simulations and exercises and are suitable for use in the classroom and for individual learning. All materials have been designed by the MareMathics project team for use by both mathematics teachers and students. MareMathics – Innovative Approach in Mathematical Education for Maritime Students, Grant No. 2019-1-HR01-KA203-061000, is an Erasmus+, KA2, Strategic Partnership project with the aim of supporting the creation and implementation of innovative practices in mathematics education for students of maritime studies across Europe, promoting cooperation of respective institutions, peer learning and exchange of experience among teaching staff. Project Partners are University of Split, Faculty of Maritime Studies, Croatia; Tallinn University of Technology, Estonian Maritime Academy, Estonia; Latvian Maritime Academy, Latvia; Polish Naval Academy, Poland; Toni Milun – Independent Microenterprise, Croatia. Authors have developed a set of online interactive learning contents that accompany static lessons and can be used for the preparation of lectures, activities in class and self-evaluation that students perform outside of class. The authors believe that the material contained in the book is suitable for any student with the necessary mathematical skills. It provides enough foundation to bridge the different educational backgrounds and mathematical backgrounds of most students. Also, these materials can be used as an auxiliary tool in other courses at maritime higher education institutions such as electrical engineering, physics, and navigation…