Sight Enhancement Systems SciPlus-3500 User Manual
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Sight Enhancement Systems SciPlus-3500 User Manual

Graphing scientific calculator with speech output
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Summary of Contents for Sight Enhancement Systems SciPlus-3500

  • Page 1 User Guide...

  • Page 3: Table Of Contents

    SciPlus-3500 Scientific Calculator – User Guide Table of Contents Getting Started ..............................1 Charging your SciPlus-3500 ..........................2 Auto Shutoff ............................... 2 The SciPlus-3500 Display ..........................3 SciPlus-3500 Operations ............................ 4 Soft Keys ................................4 A Note Regarding Nomenclature: ........................4 Working with Previous Results .........................
  • Page 4 Memory Operations ............................19 Statistical Operations ............................21 Using the SciPlus-3500 to Evaluate Mathematical Functions ................ 23 Graphing with Your SciPlus-3500 ........................28 Errors ................................. 35 Troubleshooting .............................. 36 Service ................................37 Warranty ................................37...

  • Page 5: Getting Started

    Learning Mode: If you press and hold for five seconds the SciPlus-3500 enters “Learning Mode”. In this mode, the keys do not operate normally. Rather, they simply announce (through the earbuds) their function. This allows you to become comfortable navigating the keyboard. If you precede a key with will speak its alternate function if one exists.

  • Page 6: Charging Your Sciplus-3500

    Charging the calculator is easy. Your SciPlus-3500 calculator includes a USB Wall Charger and cord. Simply plug the USB wall charger into a regular outlet, and plug the USB cable into the SciPlus-3500. The calculator should fully charge overnight. On a full battery the SciPlus-3500 will operate for about 6-8 hours of continuous use.

  • Page 7: The Sciplus-3500 Display

    SciPlus-3500 Scientific Calculator – User Guide The SciPlus-3500 Display The SciPlus-3500 screen has four lines. The function (yellow keys) bottom line with the flashing red cursor is where angle notation: Degrees, Radians, Gradians you enter expressions. The other three lines...

  • Page 8: Sciplus-3500 Operations

    Brackets è Exponents è Divide è Multiply è Addition è Subtraction Many of the SciPlus-3500 keys have two functions. The lower function appears in a white font. The alternate function appears in a yellow font. To access this function, the key must first be pressed.

  • Page 9: Working With Previous Results

    SciPlus-3500 Scientific Calculator – User Guide Working with Previous Results When entering expressions in the bottom line, it’s very easy to use the results of previous calculations displayed in the lines above it. Using the keys, position the cursor at the location in the expression where you wish to insert a previous result.

  • Page 10: Speech Output

    Speech Output Your SciPlus-3500 will automatically read the results of expressions when they are evaluated. You will also notice that the speech output describes settings screens, etc., when they appear. At any time, pressing a button to continue operations will halt the speech output. To replay previous results, simply...

  • Page 11: Settings

    SciPlus-3500 Scientific Calculator – User Guide Settings There are five settings screens in the SciPlus-3500, accessed by the key. Cycle through the settings through 5. Change settings using the screens using , or by entering A B C D keys.
  • Page 12 Screen Color Options (Settings Screen #2) COLORS Often, people with low vision are able to benefit from different color options. Use to scroll through the available BLACK ON WHITE options. WHITE ON BLACK As you scroll through the options you will notice the calculator BLACK ON YELLOW display changes accordingly.
  • Page 13 SciPlus-3500 Scientific Calculator – User Guide Backlight Brightness (Settings Screen #4) BACKLIGHT Use the softkeys to adjust the brightness of the backlight. Maximum brightness will create the most contrast in brightly lit environments. Lowering the brightness will extend the battery life between charging...
  • Page 14 Angle Mode (Settings Screen #6) ANGLE Use the softkeys to select the angle mode. DEGREES Trigonometry functions and graphing will use degrees, radians, or gradians based on this setting. RADIANS GRADIANS You will see “D”, “R”, or “G” in the status line. Page 10 of 37 version 1.2...

  • Page 15: Basic Functions

    SciPlus-3500 Scientific Calculator – User Guide Basic Functions The tables below describe the functions of the SicPlus-3500 calculator. Note that several examples are included. You will find that some functions automatically introduce a left bracket “(”, indicating that you need to enter an expression, which could be as short as a simple number, or a long mathematical expression.
  • Page 16 NAME DESCRIPTION Enter Resolves the current expression, displaying the result in the second line. If the expression contains errors, an error message will appear. then clears the current expression and all previous results. Clear Screen Open parentheses. Open Parentheses Note: Some expressions automatically include the opening parentheses. Close Parentheses Close parentheses.

  • Page 17: Mathematical Functions

    SciPlus-3500 Scientific Calculator – User Guide Mathematical Functions NAME DESCRIPTION π π Enters the symbol π into an expression. If you press then result 3.141592654 will be displayed. Calculates the factorial of the value to the left. Enter this after you enter Factorial the value of ‘x’.
  • Page 18 NAME DESCRIPTION The behavior of the % function depends upon context. If the expression is simply a number with the % operator, the result of the expression is the number divided by 100. If the % operator is appended to a number which is itself to the right of the + - ×...

  • Page 19: Trigonometry

    Trigonometry functions are very straightforward with the SciPlus-3500. Note that the values used in trigonometry functions, and the result, are expressed in Degrees, Radians, or Gradians, as indicated by ‘D’ ‘R’ or ‘G’ in the status line. The examples shown below assume the SciPlus-3500 is in “DEGREES” mode. NAME DESCRIPTION Calculates the sine of an expression.

  • Page 20: Converting Angles

    Converting Angles NAME DESCRIPTION Converts decimal degrees into degrees, minutes, seconds. 45.5 e.g.: followed by yields (45,30,0.00). Decimal Degrees to DMS Note that if the second line is in DD format, entering followed converts that value into DMS format. Converts degrees, minutes, seconds into decimal degrees. 45,30,0 e.

  • Page 21: Converting Coordinates Between Polar And Rectangular

    SciPlus-3500 Scientific Calculator – User Guide Converting Coordinates between Polar and Rectangular NAME DESCRIPTION Converts rectangular (x,y) coordinates into polar (r,θ). Note that angles are expressed in degrees, radians or gradians as indicated on the status line. Rectangular to 1 , 1 Polar e.g.:...

  • Page 22: Working With Fractions

    Working With Fractions NAME DESCRIPTION Use this key to enter a fractional amount into an expression. The result is displayed as a fractional amount ONLY if all the operands in the expression are entered as either fractions or integer numbers. 4 , 3 ÷...

  • Page 23: Memory Operations

    SciPlus-3500 Scientific Calculator – User Guide Memory Operations A B C D Note that some memory operations with the SciPlus-3300 use the soft keys NAME DESCRIPTION causes the memory soft keys to be displayed. Note that there BKSP Display Memory are two sets.
  • Page 24 “M” indicates there is a value in memory Memory Soft Keys: SCI:2 1.36E+02 2.70E+00 RCL EXC operator set clear and store ‘15’ exchange ‘15’ with memory value Places memory contents into the current expression multiply memory by ‘15’ subtract ‘15’ from memory divide memory by ‘15’...

  • Page 25: Statistical Operations

    SciPlus-3500 Scientific Calculator – User Guide Statistical Operations The SciPlus-3500 performs statistical operations on a table of up to 99 entries. Note that most statistical A B C D operations with the SciPlus-3500 use the soft keys NAME DESCRIPTION Adds the current value into the statistics table. If pressed at the end of an expression, the expression is solved, and the result added.
  • Page 26 indicates there are two entries in the statistics table Statistics Soft Keys: SCI:2 Σ:2 1.36E+02 2.70E+00 μ Σ− Σ(x) operator set delete from table (if present) sum of entries mean (average) of entries clear table variance standard deviation median (middle entry) sum of squares Σ(x σ...

  • Page 27: Using The Sciplus-3500 To Evaluate Mathematical Functions

    Input Line: This is the line in which you enter the equation using the various mathematical functions of the SciPlus-3500. You also enter values a, b, c, and x. Later, we will talk about how to determine one of these values if y is known.
  • Page 28 The “soft keys” of the SciPlus-3500 have the following meaning while in functions mode: indicates f(x) mode (color indicates equation #1) First operator set: Push once. The four soft keys allow you to use the variables a, b, c, x to...
  • Page 29 SciPlus-3500 Scientific Calculator – User Guide Calculating values of f(x): Let’s investigate how to use the SciPlus-3500 in functions mode by evaluating the expression: y=ax +bx+c 1. Enter functions mode: First, use the key to enter functions mode. 2. Enter the equation: Push two more times and select ).
  • Page 30 At any time, you can query a variable by simply selecting the key without a value or expression after the variable. For example, will display “3” in the results line. If you have not yet entered a value for a, then “a=undefined” will be displayed in the results line. You can always over write any variable with a new value.
  • Page 31 SciPlus-3500 Scientific Calculator – User Guide Entering a second function: You can enter a second function if you wish by selecting f1<>f2. You will notice that the status bar now indicates “f2(x)” in the second highlight color. When we learn graphing in the next section, you will see that the SciPlus will plot both equations, f1(x) is plotted using highlight color #1 and f2(x) is plotted using highlight color #2.

  • Page 32: Graphing With Your Sciplus-3500

    Graphing with Your SciPlus-3500 (x) mode as described in the previous section to enter the following equation (Note: You may still have this function in the calculator’s memory from the previous section): y=ax + bx +c a=0.5 b=2 c=-1 Let’s use values for a, b, c as follows: Pressing will display the graph shown at above.
  • Page 33 If you attempt to enter an x value outside this range, the SciPlus-3500 will default to a point close to the edge of the display. Note: If you enter an x value for which there is no valid y value, the SciPlus-3500 will default to a nearby x value that is valid for the equation.
  • Page 34 Adjusting the Axes There are three screens that you can use to manipulate the scales of the graph. Press or use to get to the second screen ( On this screen you can turn the grid on/off. You can also adjust the size of the x and y tick marks.
  • Page 35 -360° to +360°, -2π to +2π, or -400 to +400 gradians, depending on whether the SciPlus-3500 is set to D, R, or G. 3) Auto-Y mode: In this mode, the y-axis range is set so that the minimum and maximum points of the graph within the current x-axis range, occupy the vertical height of the display.
  • Page 36 You can also enter or edit values for A and B on this screen directly. Now select “ZERO” ( ) to solve for the zero value. The SciPlus-3500 will display the x-value at which the graph meets the x-axis (y=0). As always, just press to return to the graph.
  • Page 37 B=0.621875 something like the picture at right (the A and B values may be slightly different). If you now press “ZERO” the SciPlus-3500 will find the x-value for the right zero crossing. You should see E D I T C L R Z E R O x=0.4494897428.
  • Page 38 Plotting two lines f1(x) and f2(x) f1<>f2 Recall that in (x) mode while entering a functions, the softkey in the third softkey set) enables you to switch back and forth between two functions f1(x) and f2(x). If two functions have been entered they will both appear when you display the graph(s).

  • Page 39: Errors

    SciPlus-3500 Scientific Calculator – User Guide Errors Sometimes you’ll enter things incorrectly, such as not !ERROR closing a bracket or dividing by zero. In this case, you’ll get a SYNTAX ERROR message like the image at left. SYNTAX You might see other types of error messages such as ERROR “INVALID ARGUMENT”...

  • Page 40: Troubleshooting

    The SciPlus has no sound: The SciPlus-3500 is designed to be used with earbuds or speakers. There is no external speaker. Refer to “Speech Output” to ensure the sound is turned on and set to the proper volume. If there is still no sound, check to ensure you are using working earbuds, and that any volume dial on the earbuds is turned up.

  • Page 41: Service

    SciPlus-3500 Scientific Calculator – User Guide Service If for any reason you require service or support for your SciPlus-3500, please contact the authorized dealer from whom it was purchased. If you purchased directly from Sight Enhancement Systems, contact service@sightenhancement.com and include the following information: •...
  • Page 44 364 Huron Avenue South Ottawa, Ontario K1Y 0W7 CANADA www.sightenhancement.com...

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