Use the square-root key (three keys up from the "8" key). For example, to calculate the square root of 2, press square-root 2 =
SOURCE: How do I get an approximate answer instead of a radical?
press the [S<->D] button. it's directly above the DEL key.
SOURCE: Square root on FX-83ES
make sure you havnt droppend your calculator as this can damage the chip, if so , re solder broken parts and it sshould work, this happened on mine and after i soldered it it is fixed.
online companies can fix it if you send it away
SOURCE: how to find nth root using Casio FX-83ES
You use the power root function key accessible with the key sequence [SHIFT][X ^]. I am inserting a screen capture from the manual to show you the sequence.
On the third line of the capture (power root) is the key you must press. In the small rectangle to the left of the radical sign you enter the order of the root: 2 for square root, 3 for cube root, 4 for 4th root and son on.
To calculate the decimal log you use the [LOG] key as shown on capture. For natural log (ln), use the [LN] key. The argument (2/3) in your example should be enclosed inside the parentheses.
SOURCE: i dont know how to
You have a key for it. It is marked with the symbol of a radical. Press the key and type in a positive number thaen press the = sign key.
SOURCE: i dont know how to
To calculate a square root you press the square root key. A radical will be displayed. You type in the positive number whose root you want. Press the EXE key.
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