Barry
Reputation
221
Next privilege 250 Rep.
 Sep24 awarded Autobiographer Aug13 awarded Yearling Aug12 answered What is power of number like (power of 2, power of 10)? and how to calculate power of number. Jun20 comment Given $d(x) = \sqrt x + 3$ and $g(x) = 3\sqrt x - 2$, find $k(x) = 4\left(\frac{g}{d}\right)(x)$. The questioner's answer is not correct since he has a 14 instead of 24. Jun20 answered Given: $f(x)=5/(x+4)$ and $g(x)= -1/(7-x),$ find $h(x)=(fg)(-3)?$ Jun20 answered What does it mean “Range”? Jun17 comment Two students clean 5 rooms in 4 hours. How long do 40 students need for 40 rooms? You flipped the numbers: they both clean 5/4 rooms per hour and one then cleans 5/8 rooms per hour. Forty students can thus clean 200/8 rooms per hour or 25 rooms per hour. To clean 40 rooms then takes 40/25 or 1.6 hours, in agreement with all of the above answers. Dec1 answered What's wrong with my sum? ($S=1^2+2^2+3^2+\cdots+10000$) Nov29 comment What's wrong with my Mac Grapher? I used by trusty TI-83 calculator and it graphed all of the functions over the whole domain with no problems. Oct29 comment Which filter is the most suitable if I know points with zero noise amplitude I think some more information is needed. First, you seem to have n points consisting of data plus additive noise. Somehow you know that the additive noise is zero for some of the points. However you are using the same index n for both of these series. I think you need to redefine the index of the points with zero noise, e.g. m where, presumably m