Problem solving and algorithms

The estimated time remaining display on your GE Electric Dryer model # GFDS140EDWW is designed to show the remaining drying time in decimal format. The reason for this is that the dryer's algorithm calculates the remaining time based on a number of different factors, such as the load size, type of fabric, and level of dryness selected.
Unfortunately, there is no way to change this setting on the dryer. It is simply the way the display is designed to operate. However, you can use the manual to help you convert the decimal number to minutes. For example, if the display shows 4.1, you can convert this to 41 minutes by multiplying 4.1 by 10.
If you are still having trouble with the display or any other aspect of your dryer's operation, you may want to refer to the user manual or contact GE's customer service for further assistance.

Please see the screen captures below.
To set the base in Main.




To convert from one numeration base to another, use the baseConvert( command found in the catalog (cat)
baseConvert(number to convert, current base, expected base).
The number to convert must be positive integer (digits 0 to 9 and/or A to F). The current base and expected base can be any positive integer between 2 and 16

This is done automatically by the OS. If you need to save space you can compress files, or off load to cheaper storage.

11010101 = 1*2^0 + 0*2^1 + 1*2^2 + 0*2^3 + 1*2^4 + 0*2^5 + 1*2^6 + 1*2^7

from reverse order

Letters can be converted into decimal number using ASCII table. Every Character has it own equivalent number. Once converted into decimal (base 10), I could be easily converted into binary (base 2)
You could also use applications or web based applications such as ASCII to binary converter to help you convert it.

The FX-991ES offers simple matrix operations like basic arithmetic, plus the slightly more complex operations determinant and inversion. Furthermore, it is limited to matrices with a maximum size of three rows and three columns.

The rank of a matrix is defined as the number of linearly independent row or column vectors. You can perform a simple partial test for square matrices by calculating the determinant of the matrix:

1. Enter the matrix into matrix variable MatA.
2. Press [SHIFT] [4] [7] [SHIFT] [4] [3] [)] [=]

The display now should show det(MatA) and the determinant of the matrix in the result. If the determinant is not 0, the rank of the matrix equals the dimension of the matrix, otherwise the rank is less than the dimension.

Unfortunately, this is all support the calculator offers. For small matrices (i.e. 4x4 or smaller), you should familiarize yourself with the Gau? Elimination Method algorithm for solving linear equation systems. It is a two-step procedure where a matrix first is converted to its row echelon form, and second to row canonical form to solve the LES.
You need to follow the algorithm only through the first part, the number of non-zero rows after this step equals the rank of the matrix. With a little exercise you will be able to do it faster on paper than trying to do it with your calculator only.

For larger matrices I suggest to use a PC with more powerful math software (Maple, Mathematica, ...) or, if you know some basic computer programming, just write the necessary program yourself, which is also a very good exercise both in programming and understanding the algorithm.

Question 4: Consider the following set of processes that arrive in the ready queue at the same time:

Process CPU time

P1 2

P2 1

P3 4

P4 3

P5 1

P6 2



Consider the following scheduling algorithms: FCFS, SJF and Round Robin (quantum = 1)

(i) What is turnaround time of each process for each of the above

scheduling algorithms?

(ii) What is the waiting time of each process for each of the above

algorithms?

Press MODE 4 to switch to the BASE-N mode. Enter the base-10 number and press =. Press SHIFT [BIN] (the LOG key) to switch to base-2 and see the result.

In general, once in the BASE-N mode, to convert a number from one base to another, switch the calculator into the first base using the keys in the third row, enter the number, press =, then switch the calculator into the second base.

Press MODE 1 (or 2) to exit the BASE-N mode.

You need a binary to hex converter. Go to this link to learn all about it. http://www.unitconversion.org/numbers/base-2-to-base-16-conversion.html

Press MODE 4 to enter the BASE-N mode. If the display doesn't say Dec, press SHIFT DEC (the x^2 key) to set base 10. Enter the number to convert. Press SHIFT BIN (the log key) to switch to base 2.

Each time you switch the base the current value is redisplayed in that new base.