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The Visionary
"Love is giving someone the power to destroy you,but trusting them not to."
Power consumption calculation?
I have an Arduino board and a 5000mAh portable charger that outputs at 9V 2A. How long could the charger power the board?
Assume that only the board is being powered, so the figures in the link are valid.
1 AnswerEngineering5 years agoCompiling a wxWidgets program with gcc.?
I've installed wxWidgets installed on the desktop and I have a .cpp file already. The .cpp file is also on the desktop. I'm trying to run it using the command: g++ sample.cpp `wx-config --cxxflags --libs` -o test
However, I keep getting the error: g++: error: wx-config --cxflags --libs: No such file or directory
It seems to be that the .cpp isn't in the correct place. Does the .cpp have to be in a certain place?
1 AnswerProgramming & Design6 years agoBuilding/executing wxWidgets in Linux?
I've installed wxWidgets installed on the desktop and I have a .cpp file already. The .cpp file is also on the desktop. I'm trying to run it using the command: g++ sample.cpp `wx-config --cxxflags --libs` -o test
However, I keep getting the error: g++: error: wx-config --cxflags --libs: No such file or directory
It seems to be that the .cpp isn't in the correct place. Where should it be?
1 AnswerProgramming & Design6 years agoUsing the find command in UNIX?
How would I use this command to find all files in the home directory, except for files in the 'dock' directory?
1 AnswerProgramming & Design7 years agoSin 2x = 0.836. Find x?
I've used the double angle formula but not able to get much farther.
3 AnswersMathematics7 years ago
Integral by parts?
The problem is: ∫ x^2 ( x − 1 )^5 dx
And the answer is shown in the picture also.
Can anyone help me out with the steps? It's supposedly done using Integration by parts but I'm unable to exactly get the answer.
1 AnswerMathematics7 years agoGiven that sin A=3/5 and cos B=5/13, find the value of cos ( A− B )?
Please show steps.
5 AnswersMathematics8 years agoFind the equation of the circle whose center is at the point (1,-7) and which passes through the point (-4, 5?
Easy points time again. Show working.
1 AnswerMathematics8 years ago∣ 9 − x^2∣ <8x^2. Find possible solutions of x.?
2 AnswersMathematics8 years agoRemainder Theorem and possibly Simultaneous Equations?
When 6x^3+ax^2+bx+ 4 is divided by x+ 1 the remainder is -15, and when
the expression is divided by x −3 the remainder is 49. Use the remainder
theorem to show that a=−13 , b= 0
I'm pretty sure this is a simultaneous equation. Could you please use elimination method if it is?
3 AnswersMathematics8 years agoIf the area of a square is 11 +√112, calculate its perimeter.?
I know what the answer is already, I just want someone to explain the steps for me.
3 AnswersMathematics8 years agoWhich would better programming?
I have a program that sorts a text file with n amount of lines using arrays. The question is: Should I search through the file to see how big the array should be, or make an array with an undefined amount of space then adjust the space after placing the values in?
3 AnswersProgramming & Design8 years agoRadioBUttonList in VB Express 2012?
I am trying to use a RadioButtonList in my program but cannot find the control in the Toolbox. Is it even in VB Express 2012 for Windows Desktop?
1 AnswerProgramming & Design8 years agoFinding hardware in BIOS?
I think my nVidia 630M died, since I cannot find it in Device Manager and the drivers cannot find it, but I want to make sure. In the BIOS, It still gives the option to use Optimus, but I don't know if that's just because Optimus is still installed.
I don't know exactly how to find any information on installed hardware in the BIOS, so any help would be grateful.
2 AnswersLaptops & Notebooks8 years agoGraphing problem.....?
The function f(x) = -3x + 9 is de fined on the interval [0; 3].
But if you plug in 0, you don't get 3. How do I graph this?
Normally it would give 9.
The question in its entirety is on page 909 in this link:http://books.google.com.bz/books?id=El9Cx2mIEQIC&p...
1 AnswerMathematics9 years agoGraphing problem.....?
The function f(x) = -3x + 9 is de fined on the interval [0; 3].
But if you plug in 0, you don't get 3. How do I graph this?
1 AnswerMathematics9 years agoAre there any countries that force its residents to to do certain things that are eventually beneficial?
For example, being forced into the military. It doesn't matter if it still exists today or not.
2 AnswersGovernment9 years agoPrecal Radicals question.?
What is:
(x + sqrt(x^2 - 1)) (x - sqrt(x^2 - 1))
I think it should result in zero but I can't figure out how it would be. Could you show how you got the answer?
1 AnswerMathematics9 years ago