Texas Instruments TI89 Developer Guide - Page 1279
DIFF EQUATIONS Fields see below, GR_3D_HIDDEN_SURFACE
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Appendix B: Global Variables - Graphing 1237 gr_active, gr_other (continued) GR_DE_FIELDS - DIFF EQUATIONS Fields (see below) GR_DIRFLD - DIFF EQUATIONS Fields (see below) SLPFLD = GR_DE_FIELDS set DIRFLD = GR_DE_FIELDS set GR_DIRFLD set FLDOFF = GR_DE_FIELDS reset GR_DIRFLD reset GR_EULER - DIFF EQUATIONS Solution Method: RK = reset, EULER = set BYTE gr_3dflags - 3D Graph Style: GR_3D_WIRE_FRAME - Wire frame. GR_3D_HIDDEN_SURFACE - Hidden surface. GR_3D_CONTOUR - Contour levels. GR_3D_CONTOUR_WIRE - Wire and contour. GR_3D_IMPLICIT - Implicit plot. BYTE pad - Unused. WINDOW *grwinp - Pointer to current Graph app WINDOW struct. WINDOW *rngwinp - Pointer to current Window Editor app WINDOW struct. WINDOW *tblwinp - Pointer to current Table app WINDOW struct. TABLE_WIN_VARS *tableptr - Pointer to internal Table app data. EQU_DS equedDS - Pointer to internal Y= Editor app data. USHORT curinc - Graph iteration counter. USHORT curincy - 3D y trace mode iteration counter. USHORT tblindx - Index of tblInput element at top of Table. SSHORT yaxispix - Pixel number of y axis for panning. USHORT TBL_WidthLimit - Format width for Table app. HANDLE zval - Handle of the 3D z value array. DB3 DB3z - 3D function spin database. (continued) TI-89 / TI-92 Plus Developer Guide Not for Distribution Beta Version January 26, 2001
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