Casio FX-991ES User Guide - Page 64
Vector Calculations
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Note • Certain functions and Start, End, Step value combinations can cause number table generation to take a long time. k Number Table Screen The number table screen shows x-values calculated using the specified Start, End, and Step values, as well as the values obtained when each x-value is substituted in the function f(x). • Note that you can use the number table screen for viewing values only. Table contents cannot be edited. • Pressing the A key returns to the function editor screen. k TABLE Mode Precautions Note that changing the input/output format settings (Math format or Linear format) on the calculator's setup screen while in the TABLE Mode clears the number table generation function. Vector Calculations (VECTOR) You can save vectors under the names "VctA", "VctB", and "VctC" in vector memory. Vector calculation results are stored in a special Vector Answer Memory named "VctAns". All calculations in this section are performed in the VECTOR Mode (N8). k Creating and Managing a Vector Creating a Vector and Saving It in Vector Memory (1) In the VECTOR Mode, press 15(VECTOR)1(Dim). • This displays a vector selection screen. • Note that the vector selection screen also appears whenever you enter the VECTOR Mode. (2) Press a number key (1, 2, or 3) to specify the name of the vector you want to select. • This displays a screen for configuring dimension settings. (3) Press a number key (1 or 2) to specify the vector dimension you want to use. • You can select either 3-dimension (1) or 2-dimension (2). • Pressing a number key to specify the dimension displays the vector editor screen. VCT "A" stands for "VctA". E-62