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Look for clear water where there are plenty of meandering fish. Poor water quality can result in illness. Popular spearfishing destinations are Wisconsin, Panama, Puerto Rico, and Nicaragua. Get an understanding of the type of fish that you want to find so that you know what you are looking for. You can locate a remote beach and rent a kayak to find healthy, great tasting fish. If you are deep dive spearfishing, try to find a location where there are no other people spearfishing to reduce the risk of your dive. Prior to your dive, establish with your dive partner the radius for the dive and the overall timeframe so that you are aware of each other's location at all times. This will also serve as a precaution should one of you get lost or experience problems, particularly during a deep dive.

summary: Choose clean and clear water locations. Spearfish in remote locations. Set diving boundaries.

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There are several functions on the calculator that will be essential for Algebra, Trigonometry, Geometry, Calculus, and more. Find the following functions on your calculator: Basic Operations Operation Function + Addition - Subtraction (not negative) x Multiplication (There is often an x key for variables as well) Division ^ Raise to the power of yx y to the power of x or Sqrt Square root ex Exponential sin Sine function sin-1 Inverse sine function cos Cosine function cos-1 Inverse cosine function tan Tangent function tan-1 Inverse tangent function ln Log to the base of e log Log base 10 (-) or neg Denotes negative number () Parentheses for denoting order of operations Inserts pi Mode Switches between degrees and radians While the bulk of the most common functions will have their own keys (e.g., the SIN key), things like inverse functions (e.g., SIN-1) or less-common functions (e.g., the square root ) will be listed above other keys. Some calculators have a "Shift" key instead of a "2ND" key. In many cases, the color of the "Shift" or "2ND" key will match the color of the function's text. Whenever you type a left parenthesis, you must close it with a right one; similarly, if you type a total of five left parentheses, you'll have to close them with five right ones. This is important when entering larger calculations, as leaving out a parenthesis can cause the equation to return a far different answer than you should have. You can change between displaying values in terms of degrees (fractions of 360) or radians (decimals using pi as the basis) by pressing the MODE key, using the arrow keys to select RADIANS or DEGREES, and pressing the ENTER button. This is important when performing Trigonometry calculations. If you notice that your equations are returning decimal values instead of degrees (or vice versa), you'll need to change this setting. Saving your results and pulling them back later is an essential skill for dealing with longer problems. There are a couple of different ways to use stored information: Use the Answer function to recall the last displayed answer to an equation. For example, if you just entered 2^4, typing in -10 and pressing ENTER would subtract 10 from the solution. Press STO after retrieving your preferred answer, press ALPHA, select a letter, and press ENTER. You can then use that letter as a placeholder for your answer. If you ever need to exit a menu or remove several lines' worth of equations from the calculator screen, you can press the CLEAR button near the top of the keypad to do so. You can also press the 2ND or Shift key and then press whichever button has "QUIT" listed over it (in most cases, this is the MODE key).

summary: Find the important functions. Familiarize yourself with secondary functions. Always close your parentheses. Switch between degrees and radians. Learn how to save and restore. Clear the screen.

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Also: anche So: cosi Perhaps: forse Certainly: certamente Only: solamente At once: subito Also: pure Indeed: davvero Rather: piuttoso Again: di nuovo Yet (still): ancora Just: appena
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