Invisible
Wolfram Kernel
Execution environment
Invisible[expr_]
makes an expression invisible, but keeps the space occupied
For example
Framed[Invisible[Integrate[f[x], {x, -\[Pi]/2, \[Pi]/2}]]]
Invisible[expr_]
makes an expression invisible, but keeps the space occupied
For example
Framed[Invisible[Integrate[f[x], {x, -\[Pi]/2, \[Pi]/2}]]]