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Math Definitions : What Is the Domain & Range of a Function?

admin — Thu, 29 Dec 2011 08:38:17 +0000

In math, the domain and range are algebraic values on the coordinate plane. Discover the definition of domains and ranges inmath with tips from a mathematics tutor in this free video on math lessons. Expert: Ken Au Bio: Ken Au is a math teacher and tutor for middle school through college levels. Au holds several international patents and has published numerous technical papers. Filmmaker: Mark Bullard

Plotting a Four Dimensional Function

admin — Tue, 20 Dec 2011 20:34:03 +0000

This animated plot shows a sequence of three dimensional “slices” of a four dimensional function. The function is f(r,s,t) = r^2 * s^2 * t^5. r and s are each given a range of -1 to 1. f(r,s,t) is plotted from -2 to 2. t is varied from -4 to 4. For a given value of ta three dimensional plot is displayed. t is animated (varied automatically) with values from -4 to 4 giving a series of three dimensional plots that yield an animation of the three dimensional slices of the four dimensional function. This animation was produced using Mathematica 6 from Wolfram Research. Mathematica 6 provides the ability to “manipulate” and “animate” parameters to create interactive and animated graphs. The change in viewpoint was accomplished by “grabbing” the graph with the mouse and dragging it. The video was produced by using Snapz Pro X (from Ambrosia Software) to do a screen capture while using Mathematica on a Mac OS X computer. The Animate and Plot3D functions were used in Mathematica to achieve the graph shown.

IIT-JEE-01-Inverse Circular Function Expression in GP Squeeze Trigonometry Mathematics

admin — Tue, 08 Nov 2011 22:37:55 +0000

Learn Physics Mathematics at links zookeepersblog.wordpress.com for IIT JEE Solutions India IPhO APhO IMO RMO INMO through lectures problems numericals Zookeeper Subhashish Chattopadhyay Projectile Laten Heat Thermodynamics std 11 12 ISc Calculus BE BTech Differentiation Integration Mechanics…

Scilab question: how to use the mopen function?

admin — Sun, 16 Oct 2011 00:34:11 +0000

I want to write my output to a file, say it s called my_file; this is what I did
1) created a empty file called my_file in my desktop.
2)in my main code I typed the following
fid = mopen(my_file, “w”);
if (fid == -1)
error(‘cannot open file for writing’);
end
mfprintf(fid, “%f %f \n”, x, intensity);
mclose(fid);
But I m getting an error saying, my_file is undefined variable, what shall I do? thank you

what is wrong with my scilab function?

admin — Tue, 11 Oct 2011 15:34:00 +0000

i haven’t used scilab before but i have used matlab and i heard it is supposed to be similar. i tried to make a practice function

function out=myfun(in)
guess=1;
for i=1:100
guess=0.5*(guess+(in/guess))
end
out=guess;
endfunction

when i try to run it on the command window i get

–>myfun(4)
!–error 4
Undefined variable: myfun
so how would i define it then?

How can I plot the function “y=1/x” in scilab?

admin — Sun, 09 Oct 2011 18:34:23 +0000

I am having problem plotting hyperbolas such as y=1/x in scilab. When I plot, to my surprise it still gives me a straight line graph which is wrong.

Please help me with any sample code of correctly plotting “y=1/x”.

Can somebody explain to me fully how this function was integrated?

admin — Thu, 03 Feb 2011 17:59:52 +0000

According to my engineering mathematics textbook:

The integration of 1 / (y^2 – 1) = (1 / 2) ln (y – 1) / (y + 1)

would appreciate it for some1 to explain this fully to me.

thx in advance.

Int Algebra: Satisfying the Domain of a Function

admin — Sun, 17 Oct 2010 19:09:37 +0000

www.mindbites.com In this lesson, you will learn how to find all of the allowable x values for a particular function (the function’s domain). An allowable x value is one in which you can evaluate the function. There are certain types of numbers which are not allowable, like square roots of negative numbers, numbers with 0 in the denominator, etc. If you evaluate a function and end up with one of these types of numbers, then the x value is deemed to be outside of the domain for the function. Professor Burger will also show you how to correctly denote the domain of a function once you determine what it is.Taught by Professor Edward Burger, this lesson was selected from a broader, comprehensive course, Intermediate Algebra. This course and others are available from Thinkwell, Inc. The full course can be found at www.thinkwell.com The full course covers real numbers, equations and inequalities, exponents and polynomials, rational expressions, roots and radicals, relations and functions, the straight line, systems of equations, quadratic equations and quadratic inequalities, conic sections, inverse and exponential and logarithmic functions, and a variety of other AP algebra and advanced algebra. Edward Burger, Professor of Mathematics at Williams College, earned his Ph.D. at the University of Texas at Austin, having graduated summa cum laude with distinction in mathematics from Connecticut College. He has also taught at UT-Austin and the University of Colorado at Boulder, and …

Differentiation with Natural Log Function

admin — Mon, 11 Oct 2010 03:09:19 +0000

Differentiation with Natural Log Function

Finding Domain and Range of a Function using a Graph

admin — Fri, 08 Oct 2010 04:04:27 +0000

Finding Domain and Range of a Function using a Graph