# EngineeringForm

EngineeringForm[expr]

prints with all real numbers in expr given in engineering notation.

EngineeringForm[expr,n]

prints with numbers given to ndigit precision.

# Details and Options • In "engineering notation" the exponent is always arranged to be a multiple of 3.
• The following options can be given:
•  DigitBlock Infinity number of digits between breaks ExponentFunction Automatic function to apply to exponents ExponentStep 3 steps by which exponents can increase NumberFormat Automatic function used to assemble mantissa, base, and exponent NumberMultiplier "×" string to use to indicate multiplication NumberPadding {"",""} strings to use for left and right padding NumberPoint "." decimal point string NumberSeparator {",", " "} string to insert at breaks between blocks NumberSigns {"-",""} strings to use for signs of negative and positive numbers SignPadding False whether to insert padding after the sign
• You can mix EngineeringForm and BaseForm.
• EngineeringForm acts as a "wrapper", which affects printing, but not evaluation.

# Examples

open allclose all

## Basic Examples(2)

Different numbers in the engineering notation:

Using 3 digits of precision:

## Scope(5)

The default display for a machine number:

Display more digits than the default:

Display fewer digits:

Format a complex number:

Format a high-precision number:

Use fewer digits:

Change the display of numbers in a vector:

A matrix:

Change the display of inexact numbers in a mixed expression:

Use 4 precise digits:

## Options(11)

### DigitBlock(2)

A default integer:

Digits separated in blocks of length 3:

Use 5digit blocks with spaces as separators:

### ExponentFunction(1)

Compute approximate powers of :

Restrict exponents to multiples of 3:

Include exponents only for powers greater than 10:

### ExponentStep(1)

Default formatting to 10 digits:

Restrict exponent to multiples of 6:

### NumberFormat(1)

Display numbers in a Fortranlike form:

Display only the mantissas:

Display only the exponents after converting to scientific form:

### NumberMultiplier(1)

Use the default multiplier ×:

The default does not pad on the left or right:

Pad with spaces on the left:

### NumberPoint(1)

The default is a period:

Display with a comma (,) instead:

### NumberSeparator(1)

The default separator is a comma (,):

### NumberSigns(1)

The default includes negative signs but not positive signs:

Include positive signs as well:

## Properties & Relations(3)

EngineeringForm uses exponents that are multiples of 3 by default:

NumberForm and PaddedForm include exponents higher than 5 by default:

ScientificForm has one digit to the left of the decimal:

AccountingForm does not have exponents:

Convert a number to base 2:

Represent the number in base 2:

Reconstruct the base 10 number:

Affect the display of numbers in MatrixForm or TableForm:

## Possible Issues(1)

Placeholder zeros may be needed if the requested precision is small: Introduced in 1988
(1.0)
|
Updated in 2003
(5.0)