Method setElement

docs/app/js/sanddance-app.js:71281–71284

(row, col, value)

        return this[col * this.RANK + row];
    }
    setElement(row, col, value) {
        this[col * this.RANK + row] = (0, _validators.checkNumber)(value);
        return this;
    }
    getColumn(columnIndex, result = new Array(this.RANK).fill(-0)) {
        const firstIndex = columnIndex * this.RANK;
        for(let i = 0; i < this.RANK; ++i)result[i] = this[firstIndex + i];