Mathematical Syntax
KmPlot uses a common way of expressing mathematical functions, so you should have no trouble working it out. The operators KmPlot understands are, in order of decreasing precedence:
The caret symbol performs exponentiation. e.g.,
2^4 returns 16.
The asterisk and slash symbols perform multiplication and
division . e.g.,
3*4/2 returns 6.
The plus and minus symbols perform addition and
subtraction. e.g., 1+3−2 returns 2.
Comparison operators. They return 1 if the expression is true, otherwise they return 0.
e.g., 1 ≤ 2 returns 1.
The square root of a number.
e.g., √4 returns 2.
The absolute value of x. e.g.,
|−4| returns 4.
Each plus-minus sign gives two sets of plots: one in which the plus is taken, and one in which the minus is taken.e.g..
y = ±sqrt(1−x^2) will draw a circle.
These, therefore, cannot be used in constants.
Note the precedence, which means that if parentheses are not used,
exponentiation is performed before multiplication/division, which is performed
before addition/subtraction. So 1+2*4^2 returns 33, and
not, say 144. To override this, use parentheses. To use the above example,
((1+2)*4)^2 will return 144.
