Add an equation

An equation is a line of math, such as a fraction or a square root. In JeffPub an equation is an object on the page, like a picture: you can move it, size it, turn it, and give it a color.

Put an equation on the page

1. Click Insert > Text > Equation, or press Alt+=.
2. Type the equation in one line. Under the box you see how it will look. Click OK.

The equation goes in the middle of the page, selected. To start from a well-known one, click the arrow beside Equation and pick a built-in equation, such as the quadratic formula or the area of a circle.

How to type it

• Fractions: type a slash. a/b is a over b. (x+1)/(x-1) takes each group in brackets as one piece.
• Powers and subscripts: x^2 is x squared, and x_i is x with a small i below. You can use both, as in x_i^2.
• Roots: type sqrt(x+1) for a square root, or sqrt[3]{x} for a cube root.
• Sums, integrals, and products: type \sum_(i=1)^n i, \int_0^1 x, or \prod_(k=1)^n k. The part after the underscore goes below, and the part after the caret goes above.
• Symbols: type a backslash and a name. \alpha is α, \pi is π, \infty is ∞, \leq is ≤, and \times is ×. About 70 names work.
• Accents: \hat{x}, \vec{v}, and \bar{x} put a mark over the letter.
• Brackets that grow: type \left( ... \right), and the brackets grow to the height of what is between them.
• Matrices: a matrix is a grid of numbers. Type \pmatrix{a & b \\ c & d}. Put an & between the cells of a row, and two backslashes between the rows.

Change an equation

Select the equation and press Enter, or double-click it, or click Insert > Text > Equation. The box opens with the equation written out in one line. Change it and click OK. It is one step to undo.

An equation that a file brought with parts the box can't write is shown as it is. To change it, type a new one.

Move, size, and color

Drag the equation to move it. Drag a corner to make it larger or smaller; the equation keeps its proportions. Use Shape Fill to change the color of the letters.

Saving

• .jpub keeps the equation, so you can edit it again.
• PDF and printing draw the equation as shapes, so it stays sharp at any size.
• .pub has no equations. JeffPub saves each one as a picture of it, in the same place and size, and tells you so when you save.
• EPUB and HTML carry the equation as the line you typed.