namni Posted October 13, 2015 Report Share Posted October 13, 2015 Hi, I have noticed lot of questions on mantissa,floating point in past papers in IB computer science HL is this included in the new syllabus (2014) I didn't see any of them either? can any one help? so difficult to understand!!!!!! Reply Link to post Share on other sites More sharing options...
thecsstudent Posted October 17, 2015 Report Share Posted October 17, 2015 They are not explicitly stated to be in the syllabus however there is a reference in the syllabus guide in topic 2 to being able to explain how data is represented in the computer, where mantissa and floating point could come up. They really are not anything too complicated the mantissa is the part of the number in scientific notation without the 10 and the exponent e.g. 3.246 = 3246*10^-3 and here 3246 is the mantissa. Or in 310, 31 is the mantissa. The floating point refers to the fact that a number's radix point (the dot separating the fractional from the whole part of a number) can change position. e.g. 3.245 = 32.45*10^-1 = 324.5*10^-2 = 3245*10^-3 etc. Reply Link to post Share on other sites More sharing options...
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