Ask a Question
  • Home
  • MATLAB
  • What is the difference between sqrt(10) and sqrt(sym(10))?

What is the difference between sqrt(10) and sqrt(sym(10))?

← Prev Question Next Question →
+1 vote
486 views
in MATLAB by (37.3k points)
What is the difference between sqrt(10) and sqrt(sym(10))?

(a) There is no difference

(b) sqrt(sym(10)) is incorrect

(c) There is no function as sqrt

(d) sqrt(10) returns exact value while sqrt(sym(10)) returns 10^(1/2)

This question was addressed to me in an international level competition.

The question is from Solving Equations topic in division MATLAB Basics of MATLAB

1 Answer

+1 vote
by (1.2m points)
selected by
 
Best answer
The correct answer is (d) sqrt(10) returns exact value while sqrt(sym(10)) returns 10^(1/2)

To explain I would say: ‘sqrt()’ is a predefined function used to find a square root of large numbers to reduce the complexity of equation. sqrt(sym(10)) introduces 10 as a symbolic object to the MATLAB workspace.

Thus it will return 10^(1/2) as a symbolic expression and won’t divulge the exact root. This helps often to reduce an equation before increasing program complexity in MATLAB.

Related questions

+1 vote
1 answer
What is the difference between a[] and a{}?
asked Jul 25, 2021 in MATLAB by Anthony (37.3k points)
Welcome to TalkJarvis QnA, a question-answer community website for the people by the people. On TalkJarvis QnA you can ask your doubts, curiosity, questions and whatever going in your mind either related to studies or others. Experts and people from different fields will answer.

Most popular tags

biology – class 12 biology – class 11 construction & building materials chemistry – class 12 electronic devices & circuits network theory data structures & algorithms ii cell biology ic engine insurance finance money computational fluid dynamics engineering physics i discrete mathematics chemistry – class 11 aerodynamics casting-forming-welding i engineering mathematics operating system casting-forming-welding ii engineering drawing mysql engineering geology digital circuits wireless mobile energy management electrical measurements digital communications cyber security analytical instrumentation embedded systems electric drives cytogenetics advanced machining computer fundamentals life sciences basic civil engineering iot design of electrical machines physics – class 12 applied chemistry dairy engineering basic chemical engineering cloud computing microprocessor bioinformatics aircraft design aircraft maintenance software engineering drug biotechnology digital signal processing biochemistry data structures & algorithms i automotive engine design avionics engineering material & metallurgy energy engineering cognitive radio unix electrical machines biomedical instrumentation object oriented programming electromagnetic theory power electronics analog communications bioprocess engineering civil engineering drawing engineering metrology physics – class 11 mathematics – class 12 engineering chemistry i basic electrical engineering unit processes mongodb signals and systems cryptograph & network security hadoop mathematics – class 11 engineering physics ii html control systems engineering mechanics antennas analog circuits computer network java sql server javascript concrete technology chemical process calculation artificial intelligence design of steel structures c++ database management computer architecture engineering chemistry ii corrosion engineering chemical technology dc machines
Powered by TalkJarvis
...