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cmd_linetan |
Function (ROM Call 0x35A) |
Executes TI-Basic 'LineTan' command.
cmd_linetan displays the Graph Screen and draws a tangent line to the
expression pointed to by expr (the expression is assumed to be a
function which uses x as the independent variable) at the point
specified by the floating point item pointed to by x.
Uses: ER_catch, ER_success, ER_throwVar, NG_approxESI, push_expression, push_Float, push_quantum, push_quantum_pair, top_estack, gr_active, OSCheckBreak, is_transfinite, ForceFloat, GraphActivate, GrLineFlt, QSkipGraphErr, XCvtPtoF, YCvtPtoF
See also: cmd_slpline, cmd_line, cmd_drawfunc