Whitespace in statements

IDLAYOUT-3
TitleSurround operators with spaces.
PriorityStrongly recommended
DescriptionSurround the following operators with spaces:
= : ^ == <= >= < > ~= & && | || + - * .* /
Do not add a space between the unary minus-sign and its operand.
More whitespace often leads to improved readability.
RationaleReadability

Avoid:

isValid=y>0&&x==-1;

Instead use:

isValid = y > 0 && x == -1;