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Showing posts from September, 2019

Pursuit Curves

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PursuitCurves.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Solving the physics problem pertaining to Pursuit Curves. (Krantz) * .... Differential Equations for solving physics problems. * .... have method that we know to solve these equations. Formulation: Suppose a Destroyer/Warship was to pursue a submarine on a particular prescribed path. What path does the warship use to follow the submarine? Well, looking at the diagram below we see that the submarine begins at the origin and travels up the y-axis with velocity a ft/s. At the same time a warship destroyer travels at speed b ft/s from point (c,0) in pursuit of the sub. What is the destroyer's path ...

The Hanging Chain

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HangingChain.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Solving the physics problem pertaining to the hanging chain. (Krantz) * .... Differential Equations for solving physics problems. * .... have method that we know to solve these equations. So, what is the classic Hanging Chain formulation. What is all that mess below? Well imagine a metallic chain hanging in the middle under the influence of gravity. In architectural terms it's a very important structure and can be mathematically described. It is in fact related to the arch, but upside down. We analyze points A (the midpoint of gravitational attraction) and B (an arbitrarily set point) on the ...

switching php to xhtml (needs php)

helloInterpolation name address

php heredoc (needs php)

helloInterpolation name $name address $address HERE; ?>

php interpolating variables (still needs php)

helloInterpolation Hello $firstName $lastName! "; ?>

PHP hello world (needs php to work)

monty.php Monty Python quiz results Hello World! \n "; Print $word . $dance; Print " Hello " . $output . " "; Print " " . $output + 5 . " "; ?>

Monty Python php file (not ready)

monty.php Monty Python quiz results Your name is $name. Your quest is $quest. HERE; print $reply; //determine if she's a witch $witch = false; //See if check boxes exist if(isset($_REQUEST["nose"])){ $witch = true; } if(isset($_REQUEST["hat"])){ $witch = true; } if(isset($_REQUEST["newt"])){ $witch = true; } if ($witch == true){ print " She's a witch! \n"; } // end if ?>

Monty Python Quiz (not ready)

monty.html Monty Python Quiz What is your name? Roger the Shrubber Arthur, King of the Britons Tim the Enchanter What is your quest? To chop down the mightiest tree in the forest with a herring I seek the holy grail. I'm looking for a shrubbery. How can you tell she's a witch? She's got a witch nose. She has a witch hat. She turned into a newt. Submit

The Ball (not ready)

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movement.html St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. This page is still under construction! Soooo, ......... You can go to DE Ex1 here ... D.E. Ex1. Click buttons to move ball ball left right x = 100, y = 100

1st Example Gauss' Law Problem

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MaxwellsEquationsGausslawex1.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Gauss' Law Example 1: Net charge on cube due to external source. What we are shown is a cube in an external electric field. We are asked to prove that the net flux out of the cube is zero due to that external electric field. Easy right? Remember that the geometry of the situation will lead us to the solution of the problem. Think about it! There are six faces on the cube and four of them eliminate themselves immediately! How? Well, remember that the formula asks for the divergence (or dot product) of the two variables E and dA. This means that the important contribution to the flux will be d...

Maxwell's Equations (calculus/differential equations)

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MaxwellsEquations.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Maxwell's Equations (integral and differential form) .... Properties: * .... Differential Equations for solving physics problems. * .... have method that we know to solve these equations. Maxwell's Equations Introducing the del operator, that funny little triangle below. What is refers to is the partial derivative of the function in question with respect to a particular variable (x, y, or z) In practice the del operator can be used in two ways depending on whether we are taking the dot product (or divergence) of a function or whether we are taking the cross product (or curl) o...

Validating Expressions

innerHTML.html Text Input Devices Name Email Phone submit You can go to DE Ex2 here... D.E. Ex2. You can go to DE Ex1 here ... D.E. Ex1.

Radio buttons and more

innerHTML.html With what weapon will you fight the dragon? Spoon Flower Wet Noodle fight the dragon You can go to DE Ex2 here... D.E. Ex2. You can go to DE Ex1 here ... D.E. Ex1.

Orthogonal Trajectories

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OrthogonalCurves.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Orthogonal Curves .... Properties: * curves belonging to a family of differential equations. * ....a way of going back and forth between equation and family of solution curves. Remember that a family of curves can represent solutions in differential equations. Presented here below are curves that are tangent to the y-axis at the origin. x^2 + y^2 = 2cx the goal is to take derivatives with respect to x on both sides solving the result for 2c (yielding 2x + 2y(dy/dx) = 2c). The resulting equation will yield a term (at least one) with dy/dx. Now take the original equation and solve it in f...

Differential Equations: Exact Equations

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ExactEquations.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Exact Differential Equations .... Properties: * .... know what they are right off hand. * .... have method that we know to solve these equations. First order equations can be written of the form: M(x,y)dx + N(x,y)dy = 0 (Krantz) Scientist like to find simpler ways to solve problems, and why shouldn't one method of problem solving help with another. Remember learning about circles in algebra, and that they had the form a^2 + b^2 = r^2? With r referring to radius, a family of curves (circles in this case) is designated by a specific radius. Well, it turns out that, using differential equatio...

First Order Linear Equations

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;; ;; FirstOrderLinearEquations.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Linear Differential Equations .... Properties: * .... know what they are right off hand. * .... have method that we know to solve these equations. First order linear equations have the form y' + a(x)y(x) = b(x) as shown in the illustration below. There must not be any powers of the variable nor can the variable be an argument of any of the terms.(S.G. Krantz, 2005) In the example shown below we are given the equation y' + (3x^2)*y = x^2. Both sides are then multiplied by an exponential factor wherein a(x) represents 3x^2. (in this case) This is done because the ...

Javascript 3 program working

innerHTML.html St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. //New Section What do you want on your pizza? Pepperoni Mushrooms Sausage Order Pizza Your order: Multiple Language Selections Select the language(s) you know. (ctrl-click to select multiple lines) XHTML CSS Javascript PHP MySQL Java VB.NET Python Flash perl Submit Color Changes Please select a color White Red Orange Yellow Green Blue Indigo Violet Text Input Devices Normal Text field/ Password field ...

Third Javascript program

BetterWorld2.html St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Text Input Devices Normal Text field/ Password field Hidden This is a big text area. It can hold a lot of text. Click Me

Jack Prime

Jackname.html Text Box Input and Output Type your name:

Second JavaScript program

BetterWorld.html St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Text Input Devices Normal Text field/ Password field Hidden This is a big text area. It can hold a lot of text. Click Me Back to the start ... D.E. Ex1.

First JavaScript Program

HelloWorld.html St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Back to the start ... D.E. Ex1.

David Johnson Cover Letter

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DifferentialEquationsBiologyApplicationsEx1.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Hi, my name is David Johnson a G4S security guard here at the State Farm Corporate south facility. I just wanted to thank you for selecting me to work at this location. Presently I would like to say a few things about myself. While I am happy with my security job, I feel that I should inform you of my background in the fields of Physics and Engineering. I received my first bachelor’s degree in Physics from Xavier University in 1993 in the field of Physics. I received a master’s degree in Physics Teaching from Kansas State University in 1996 under the guidance off Dr. Dean Zollman. Th...

David C Johnson Resume

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DifferentialEquationsBiologyApplicationsEx1.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. David C. Johnson 309-622-3942 P.O. Box 3421 Bloomington, Ill. 61702 MrDavidCJohnson@aol.com Objective: Full time position as a Physics/Engineering Laboratory Technician. Education (2000) - M.A. Xavier University of Louisiana (Curriculum & Instruction) - High School Teaching Certificate (1996) - M.S. Kansas State University (Physics Teaching) (1993) - B.S. Xavier University of Louisiana (Physic...

nick input output

innerHTML.html Inner HTML Demo Please type your name Click Me Watch this space.

jack input output

Jackname.html Text Box Input and Output Type your name:

color change

backgroundColors Click a button to change the color