Use of prefixes instead of exponents
In the RedCrab Calculator prefixes can be used instead exponents.
The term 2·103 can be replaced by 2k.
22·10-6 kann durch 22µ ersetzt werden
Before entering a prefix symbol, press the ESC key. Pressing the ESC key marks the following character as a prefix and avoids conflicts with variable names. This also means that the same letters for variables and prefixes can be used on the worksheet. Prefixes are displayed in gray to distinguish them from variables..
Available from version 7.9
Calculation of an impedance according to the formula \(\displaystyle X_C=\frac{1}{2π·f·C}\)
For \(f\) is assumed 2.5 kHz and for \(C\) 22µF.
\(\displaystyle X_C=\frac{1}{2π·2.5·10^3·22·10^{-6}}\)
\(\displaystyle X_C=\frac{1}{2π·2.5k·22µ}\)
The SI prefixes are standardized by the International Bureau of Weights and Measures (IBWM)
The list below shows the prefixes which RedCrab used
| Y | Yotta | 1024 | 1.000.000.000.000.000.000.000.000 | Quadrillion | Septillion | |
| Z | Zetta | 1021 | 1.000.000.000.000.000.000.000 | Trilliarde | Sextillion | |
| E | Exa | 1018 | 1.000.000.000.000.000.000 | Trillion | Quintillion | |
| P | Peta | 1015 | 1.000.000.000.000.000 | Billiarde | Quadrillion | |
| T | Tera | 1012 | 1.000.000.000.000 | Billion | Trillion | |
| G | Giga | 109 | 1.000.000.000 | Milliarde | Billion | |
| M | Mega | 106 | 1.000.000 | Million | ||
| k | Kilo | 103 | 1000 | Thousand | ||
| m | Milli | 10-3 | 0,001 | Thousandth | ||
| μ | Mikro | 10-6 | 0,000.001 | Millionth | ||
| n | Nano | 10-9 | 0,000.000.001 | Milliardth | Billionth | |
| p | Piko | 10-12 | 0,000.000.000.001 | Billionth | Trillionth | |
| f | Femto | 10-15 | 0,000.000.000.000.001 | Billiardth | Quadrillionth | |
| a | Atto | 10-18 | 0,000.000.000.000.000.001 | Trillionth | Quintillionth | |
| z | Zepto | 10-21 | 0,000.000.000.000.000.000.001 | Trilliardth | Sextillionth | |
| y | Yokto | 10-24 | 0,000.000.000.000.000.000.000.001 | Quadrillionth | Septillionrh | |
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