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-- home video demo how to use contact for iphone, ipod touch and ipad the perfect math app with full-featured algebra capabilites on par with high-end scientific calculators, ideal for high-school or college students, engineers or anyone needing a powerful math toolbox. even if you are using just a fraction of the functionalities, the iphone-ish, easy-to-use interface makes life much easier compared to traditional calculators. exact arithmetic (unless you select rounded numerical mode) formulas displayed in "natural" form history, storing results in an easy-to-use way unlimited number of variables, user-defined functions session management simplifying or expanding expressions solving equations, systems, differential equations, numerically or symbolically integrals, derivatives, limits, taylor series, etc for function analysis full support for complex numbers vectors, matrices, linear algebra functions for iphone and ipad: -- -- for android: -- android version -- note that this video was made with an earlier version of the app so there are some differences, but it still illustrates the basic concepts of the user interface. if you would like to read the in-app help on an other device while running the app, you can access the help files from here: iphone version ipad version additionally here is a list of built-in functions. click on one of them to see the details. (this is the same as what you get when pressing the question mark in the function list) abs(expr) absolute value of a number examples: abs(-6)=6 abs(3+4*i)=5 asin(expr) arc sine. result is in radian or degree depending on the selected trigonometric mode. asinh(expr) area hyperbolic sine. acos(expr) arc cosine. result is in radian or degree depending on the selected trigonometric mode. acosh(expr) area hyperbolic cosine. atan(expr) arc tangent. result is in radian or degree depending on the selected trigonometric mode. atanh(expr) area hyperbolic tangent. acot(expr) arc cotangent. result is in radian or degree depending on the selected trigonometric mode. acoth(expr) area hyperbolic cotangent. binomial(n,k) binomial coefficient. needs two parameters (n,k) , returns the number of k-combinations from a set with n elements. examples: binomial(9,4) ceiling(expr) the least integer greater or equal to the given argument, if it is numerical. examples: ceiling(4.3) char(m) characteristic polynomial of a matrix. first argument is the matrix, the second argument (which is optional) is a symbol. with only one argument the result will be a polynomial of x. examples: char([2,1;3,5]) = x^2-7*x+7 char([2,1;3,8],y) = y^2-10*y+13 clear(symbol) clears any assigment previously made for the symbol given as the only argument. examples: clear(x) coldim(m) number of columns in the matrix given as the single argument. examples: coldim([1,2,3;2,3,4]) = 3 conj(expr) conjugate of a complex number. examples: conj(3+2*i) = 3-2*i cos(expr) cosine. argument expected in radians or degrees depending on the selected trigonometric mode. cosh(expr) hyperbolic cosine. cot(expr) cotangent. argument expected in radians or degrees depending on the selected trigonometric mode. coth(expr) hyperbolic cotangent. csc(expr) cosecant. det(m) determinant of a matrix. examples: det([2,1;3,5]) = 7 diff(expr,symbol[,n]) computes the derivative of a function. first argument is the function, the second one is the variable. third argument is optional, it determines how many times the function is differentiated. examples: diff(x^2+x-1,x) = 2*x+1 diff(cos(x)*x*y,x) = y*(cos(x)-sin(x)*x) diff(x^2+x,x,2) = 2 dim(v) dimension of the vector given as the single argument. works both with row and column vectors. for matrices use the coldim and rowdim functions. examples: dim([1,2,3]) = 3 div(expr,expr) division with remainder. first argument is the dividend, second one is the divisor. the result consists of the quotient and the remainder. arguments can be numbers or polynomials. examples: div(9,4) div(x^3+x^2-2x+1,x-1) factor(expr) factorization of a polynomial. examples: factor(x^2+x-2) = (x+2)*(x-1) factorial(n) factorial of an integer number. examples: factorial(5) = 120 floor(expr) the greatest integer less or equal to the given argument, if it is numerical. gcd(expr,expr) greatest common divisor of the two given arguments examples: gcd(6,4)=2 gcd(x^2+2*x+1,x^2+3*x+2)=x+1 ifactor(n) prime factorization of an integer number. examples: ifactor(24)=2^3*3 inv(m) inverse of a matrix. examples: inv([2,1;5,3]) = [3,-1;-5,2] invlap(expr,symbol,symbol) inverse laplace transform. has three arguments: - 1. the expression to be transformed. - 2. source variable (usually 's' in freq. domain) - 3. target variable (usually 't' in time domain) examples: invlap(w/(w**2+s**2),s,t) = sin(w*t) im(expr) imaginary part of a complex number. examples: im(3+2*i) = 2 integrate(expr,symbol,expr,expr) computes the integral of a function. in case of definite integration you have to pass 4 arguments: - 1. integrand function - 2. variable of integration - 3. lower bound of domain - 4. upper bound of domain the 3rd and 4th arguments can be omitted. in this case you get the indefinite integral. examples: integrate(x^2,x) = x^3/3 integrate(sin(x),x,0,pi) = 2 laplace(expr,symbol,symbol) laplace transform. has three arguments: - 1. the expression to be transformed. - 2. source variable (usually 't' in time domain) - 3. target variable (usually 's' in freq. domain) examples: laplace(sin(w*t),t,s) = w / (w^2 + s^2) lcm(expr,expr) least common multiple of the two given arguments examples: lcm(12,15) = 60 lcm(2*x+1,3*x+2) = 6*x^2+7*x+2 limit(expr,symbol,expr) limit of a function. if the two-sided limit does not exist returns right-side limit. it has 3 arguments: - 1. function. - 2. variable of the function. - 3. the point of limit. examples: limit(sin(x)/x,x,0) = 1 limit2(expr,symbol,expr) two-sided limit of a function. if it does not exist returns undefined. it has 3 arguments: - 1. function. - 2. variable of the function. - 3. the point of limit. examples: limit2(sin(x)/x,x,0) = 1 limit2(1/x,x,0) = undefined limitl(expr,symbol,expr) one-sided limit of a function from the left. it has 3 arguments: - 1. function. - 2. variable of the function. - 3. the point of limit. examples: limitl(1/x,x,0) = -infinity limitr(expr,symbol,expr) one-sided limit of a function from the right. it has 3 arguments: - 1. function. - 2. variable of the function. - 3. the point of limit. examples: limitr(1/x,x,0) = infinity ln(expr) natural logarithm. has exactly one argument. log(expr,expr) logarithm. has two arguments, second one is the base. examples: log(100,10) = 2 log10(expr) 10-based logarithm. has exactly one argument. mateigen(m,symbol) eigenvalues and vectors of a matrix. first argument is the matrix, second is a symbol. the result is a list of lists of 3 elements, where the first element is a square free factor of the characteristic polynomial, the second its multiplicity and the third the corresponding eigenvector examples: mateigen([1,2;2,1],x) matmake(expr,rsymbol,rn,csymbol,cn) creates a matrix. requires exactly 5 arguments: - 1. expression to define the elements - 2. symbol to be substituted with the row number - 3. number of rows of the matrix - 4. symbol to be substituted with the column number - 5. number of columns of the matrix examples: matmake(100a+b,a,3,b,4) min(n,...) minimum of the arguments. can also take a matrix or vector as an argument, in this case it returns its smallest element(s). if some of the arguments can be compared, more than one of them may be returned. examples: min(10,-2,5) min([2,6,1;2,4,5]) max(n,...) maximum of the arguments. can also take a matrix or vector as an argument, in this case it returns its largest element(s). if some of the arguments can be compared, more than one of them may be returned. examples: max(10,-2,5) max([2,6,1;2,4,5]) nextprime(n) returns the next prime greater than the integer argument. numint(expr,symbol,expr,expr) approximates the definite

URL analysis for sym-calc.com

Whois Information

Whois is a protocol that is access to registering information. You can reach when the website was registered, when it will be expire, what is contact details of the site with the following informations. In a nutshell, it includes these informations;

Domain Name: SYM-CALC.COM
Registry Domain ID: 1699149877_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: http://www.namecheap.com
Updated Date: 2018-02-14T22:47:07Z
Creation Date: 2012-01-28T12:09:12Z
Registry Expiry Date: 2019-01-28T12:09:12Z
Registrar: NameCheap Inc.
Registrar IANA ID: 1068
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.6613102107
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: DNS1.REGISTRAR-SERVERS.COM
Name Server: DNS2.REGISTRAR-SERVERS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2018-03-06T18:52:04Z <<<

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Registrars.

  REGISTRAR NameCheap Inc.

SERVERS

  SERVER com.whois-servers.net

  ARGS domain =sym-calc.com

  PORT 43

  TYPE domain

DOMAIN

  NAME sym-calc.com

  CHANGED 2018-02-14

  CREATED 2012-01-28

STATUS
clientTransferProhibited https://icann.org/epp#clientTransferProhibited

NSERVER

  DNS1.REGISTRAR-SERVERS.COM 216.87.155.33

  DNS2.REGISTRAR-SERVERS.COM 216.87.152.33

  REGISTERED yes

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