radical sign การใช้

• The radicand is the number or expression underneath the radical sign, in this example 9.
• It is an over-bar for extending the radical sign over the operands of the radical operator.
• Perhaps the most radical sign of change is SRI's bold move to renegotiate its financial payments to Stanford, which date back 25 years.
• Ah, I reckon it's the square root sign that might automatically turn on textstyle, so that the stuff can fit nicely under the radical sign.
• :: Well, by definition, the radical sign refers to the principal square root, which is never negative, so \ sqrt x =-1 has no solution.
• In 1637 Descartes was the first to unite the German radical sign  " with the vinculum to create the radical symbol in common use today.
• In some contexts, particularly when the number whose cube root is to be taken is a real number, one of the cube roots ( in this particular case the real one ) is referred to as the " principal cube root ", denoted with the radical sign.