Fix a graph that is missing or distorted

01

Press these keys

Y=WINDOWZOOM6:ZStandard

02

Walkthrough

1
Check Y=
Confirm the function is entered and its equals sign is highlighted. Clear old equations if needed.
2
Check mode and plots
Use FUNCTION mode for y=f(x) and turn off incompatible stat plots.
3
Repair window
Ensure min<max on both axes. Start with ZStandard, then choose a context-specific window.

03

Worked example

A model near x=500 is invisible in ZStandard.

NORMAL FLOAT AUTO REAL MPblank standard viewcurve appears after setting an x-window around 500

AnswerThe graph was outside the viewing window, not absent.