Sharp EL9900C EL-9900C - Page 116
T_line, Example, T_Line, V_Line, T_line
UPC - 074000016873
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Chapter 6: Advanced Graphing Features - Advanced Keyboard From the GRAPH window V_Line Example • Draw a vertical line manually. 1. Press @ d A 4. 2. Use the cursor navigation keys ({ } ; ') to move the flashing cursor to the appropriate position. 3. Press E to draw the line. 5 T_line( Draws a tangental line at the specified point of a graph curve. From the Calculation screen T_line(equation, x-value) Example • Draw the tangental line of y = x2 at x = 1. 1. Select T_Line(. 2. Enter "x2, 1)" on the line. Note: 3. Press E. It is also possible to specify a function equation from Y0 to Y9 if stored. (T_line(Y1, 1)) From the GRAPH window T_line( Example • Draw a tangental line by manually specifying the point. 1. Select T_Line(. 2. Use ; ' to move the flashing cursor on the targeted graph line. Use { } to select a graph to draw the tangental line. 3. When the point is set at the tangent point, press E. 106