Category: Uncategorized

A powerful, flexible graphing calculator . . . and it's free!

Does far more than most of the paid calculators out there . . . let alone the free ones.

Features:

1) Scientific Calculator. Simple to grasp and easy to use, but powerful features are available when you need them. Available functions include the following:

• the usual arithmetic functions and exponentiation.
• square root, cube root, nth root, natural log, log base 10, log of arbitrary base, absolute value, factorial, permutations (nPr), combinations (nCr), modulus, random integer, bell curve, cumulative normal distribution, decimal to fraction.

2) Graphing. Capabilities:

• Graph up to four equations at once.
• Graphs are labeled.
• You can drag the graph or pinch to zoom in or out.
• Calculator can find roots and intersections.
• Graph in polar coordinates.
• Graph parametric equations
• Can graph implicit functions, such as x^2+y^2-4=0. Most calculator apps can't do this!

3) A unit converter. With a tap, you can enter the result of your conversion into the calculator. Currently converts different units of the following: acceleration, angle, area, density, distance, energy, force, mass, power, pressure, speed, temperature, time, and volume. Great for doing physics homework!

4) Constants for scientific calculations — speed of light, strength of gravity at Earth's surface, etc. etc. etc. Tapping on a constant will insert it into your calculation — i.e, you don't have to key in the value. Again, great for doing physics homework!

5) It can make a table of the values of any function you care to enter. You can choose the starting x value of the table, as well as how much x increases for each successive row.

6) Help screens linked directly to many of the available functions and constants. Tap the disclosure arrow to see the definition.

7) Forgot the quadratic formula? Or the double-angle formulas for sine and cosine? The math/science reference hits the high points of various subjects. Currently includes algebra, differential and integral calculus, geometry, trigonometry, vectors, vector calculus, and classical mechanics.

8) Keep track of significant figures [AKA sig figs]

9) Statistics — enter data and make a histogram, box and whisker plot, or scatter plot with optional regression line.

If you are viewing this in iTunes, you will see five iPhone screenshots and five iPad screenshots. But even ten shots don't come close to showing everything this calculator can do.

Would you like to know your IQ level?
Would you want to know who of celebrities is closer to your intelligence?
Also, you may find out that you belong to 2% of people with the highest IQ level.
Let’s find out our intellectual age and measure our IQ level (Intelligence Quotient)!

IQ pro is a professional application that implements the culture-free testing method of IQ level that is based on R. Cattell.
Experts consider this method as one of the most accurate and reliable in the world. The test results do not depend on your knowledge, experience, culture, or nationality.

Using this application you can:

– Get tested your IQ level with detailed explanations and instructions.
– Find out your intellectual age.
– Find out who of celebrities is closer to your IQ.
– Get the result in a form of number from 50 to 160, which is your IQ.
– Test also your friends and relatives.
– Manage a convenient database of results (for professionals: psychologists, human resource managers, and so on).
– Review the response errors after testing is completed.
– Use this application to test new employees for a job.

Anyone can:
-View district and school news
-Use the district tip line
-Receive notifications from the district and schools
-Access the district directory
-Display information personalized to your interests

Leafsnap contains beautiful high-resolution images of leaves, flowers, fruits, petioles, seeds, and bark to aid identification. These high-resolution images were created by the conservation organization Finding Species.

This interactive aquarium features sharks, clown fish and many more. Look deeper to learn more about the ethereal sea life in the pacific ocean.

If you want to discover what type of fish is in our virtual reality aquarium, gaze at the specific fish to reveal their description.

This app requires Virtual Reality Headset.

Interactive Aquarium app is brought to you from the creators of EON Experience VR. Download more of our virtual reality and augmented reality apps at the app store.

From hikers to hunters, birders to beach-combers, the world is filled with naturalists, and many of us record what we find. What if all those observations could be shared online? You might discover someone who finds beautiful wildflowers at your favorite birding spot, or learn about the birds you see on the way to work. If enough people recorded their observations, it would be like a living record of life on Earth that scientists and land managers could use to monitor changes in biodiversity, and that anyone could use to learn more about nature.