Diamond Problem Help

Subject Areas

Tools / Misc

bCalc

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scrnGC2: Calc Input

scrnGC3: f(x) Plot Input

scrnGC4: g(x) Plot Input

The inputs above will be hidden when the program finally gets launched. Currently, I am not hiding them even when you close the calculator. The purpose of the inputs is to help in debugging. This allows you to enter simple code on the calculator screen but the program translates the input to javascript math. Give it a try and see if you notice any obvious problems or have suggestions for improvements.

gCalc

drag-N-drop

Select precision* of answer:

Select angle mode:

Enter expression to evaluate here:

The answer is shown below:

Enter function to be plotted:

f(x) =

Enter 2nd function, if needed:

g(x) =

Change or reset the x-y scaling below:

x_min =

x_max =

y_min =

y_max =

Accuracy Disclaimer

The javascript math object methods used for this calculator are not accurate for very large or very small numbers. In particular, the trigonometric functions may yield very small answers that should actually be zero or very large answers that should be infinite. This typically occurs at 90� or pi/2 intervals.

DO NOT USE WHERE HIGH PRECISION IS REQUIRED. USE AT YOUR OWN RISK.

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Diamond Problem Help

The object of this lesson is to give you an opportunity to practice your addition and multiplication skills. Should you become frustrated at this level, it might be best that you first try the Flash Cards Lesson.

In the simple lesson, you are given two numbers. The one on the left and the one on the right of the big 'X' shown below.

Find the product of these two numbers and place it at the top of the big 'X'.

Find the sum of the two given numbers and place it at the bottom of the big 'X'.

Be careful when dealing with negative numbers. The product of any two numbers of the same sign is always positive and the product of any two numbers of opposite sign is always negative. Remember to use the number line when doing the sum.