Application Peter Chew Rule in Calculator Design

Abstract

Mathematics has always been a challenging topic for high school and university students around the world. Literature revealed that use of technological tool have had a major impact on advanced mathematics teaching and mathematics learning. Mathematical tools such as online calculator and math applications, photo math applications and calculators contain only the knowledge already stated in the book such as the sine and cosine rule. However, if we are given 2 sides and an include angle, it cannot be solve by cosine Rule and sine rule directly, it make some online calculator cannot solve the problem. Peter Chew Rule can solve problem mention directly. If we use online calculator Math portal, we can see that Math portal can solve problems that can be solved directly by sine rule or cosine rule. However, Math portal cannot solve the problem of using the cosine rule plus the sine rule as described above. If we ask Math portal to solve the problem of using cosine rule plus sine rule, Math portal will show error. The reason is the design of Math portal no have Peter chew rule. Therefore, a new product with Peter Chew Rule is needed today to help solve problem mention, which is one the main goal of the PCET calculator. PCET calculator can solve the problems mention cause PCET calculator design have Peter Chew rule. Another problem of some on online calculator like Symbolab and Math portal is they just provided acute angle for the ambiguous case of triangle solution. So, if we use on online calculator like Symbolab and Math portal for help calculate some problem by current method, we will get the wrong answer. But PCET calculator no have this problem cause PCET calculator design using Peter Chew rule.