View Full Version : need help, student

jeckel7234

09-16-2012, 04:10 AM

Im taking my first class in C++ and im having a hard time understanding it all, ive been stuck on this problem for some time now, can anyone give me a clue what e stands for in purple and how to react to the % sign on the question lime? Thanks again

Assume that you have the following variable declarations:

int color, lime, straw, yellow, red, orange;

float black, white, green, blue, purple, crayon;

Evaluate each of the statements below given the following values:

color is 2

black is 2.5

crayon is -1.3

straw is 1

red is 3

purple is 0.3e+1

Write your answer in the form: variable is assigned value

white = color * 2.5 / purple;

green = color / purple;

orange = color / red;

blue = (color + straw) / (crayon + 0.3);

lime = red / color + red % color;

purple = straw / red * color;

Redcoder

09-16-2012, 02:15 PM

Im taking my first class in C++ and im having a hard time understanding it all, ive been stuck on this problem for some time now, can anyone give me a clue what e stands for in purple and how to react to the % sign on the question lime? Thanks again

Assume that you have the following variable declarations:

int color, lime, straw, yellow, red, orange;

float black, white, green, blue, purple, crayon;

Evaluate each of the statements below given the following values:

color is 2

black is 2.5

crayon is -1.3

lime = red / color + red % color;

purple = straw / red * color;

In every programming language, the % sign is for the modulo mathematical operation. The result of R%T is the remainder when you do

R÷T.

Examples:

4%2 = 0 ; // Because 4 divides 2 to leave no remainder

7%2 = 1;

50%6 = 2;

88%9 = 7;

So for and so forth. It is useful when comparing divisibilty, finding out whether a number is a factor of another or when getting remainders from divisions.

As for e , I believe that that's Euler's number. http://en.m.wikipedia.org/wiki/E_(mathematical_constant) . You can find it in the math library or to calculate it yourself --> http://stackoverflow.com/questions/3028282/an-efficient-way-to-compute-mathematical-constant-e

Fou-Lu

09-16-2012, 05:34 PM

Modulo isn't the same in all languages, but I can't think of a C based language that doesn't use % as modulo. Always check the language basics documentation as they will indicate what the arithmetic and bitwise operations are (which I find are the ones that change the most). For example, in visual basic you use the Mod operator. Unfortunately implementation of modulo also changes slightly between languages.

The 'e' in this example isn't euler. Its exponent, so this is a block written an scientific notation. 0.3e+1 is the same as 3.0.

krishvandam

09-25-2012, 08:55 AM

hello hi ! I am here for introduce you new kind software and hardware

in few days there many type of tech gadgets are come and they can do as fast as

your expectation and give you new better experience awareness is this period of time and make our life more smooth and better so I want give you that news.

If want more information about this software click the link on ATI RADEON HD 5670 – SERIES GRAPHICS CARDS FROM AMD.

The information about new hardware ATI Radeon HD 5670 is not anything but graphics card hardware software that provides superb act. operates below 75 watts .

----------------------------------------------------

ATI RADEON HD 5670 – SERIES GRAPHICS CARDS FROM (http://www.ezdia.com/epad/ati-radeon-hd-5670-series-graphics-card-amd/6972/)

Powered by vBulletin® Version 4.2.2 Copyright © 2017 vBulletin Solutions, Inc. All rights reserved.